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Michigan County Creation Dates and Parent Counties (view source)

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{{Note|See an interactive outline map of [http://historical-county.newberry.org/website/Michigan/viewer.htm ''Michigan Historical Counties''] at Newberry Library site<ref>[http://historical-county.newberry.org/website/Michigan/viewer.htm ''Michigan Atlas of Historical County Boundaries'', John H. Long, Editor; Peggy Tuck Sinko, Associate Editor; Gordon DenBoer, Historical Compiler; Douglas Knox, Book Digitizing Director and Digital Compiler; Emily Kelley, Research Associate; Laura Rico-Beck, GIS Specialist; Peter Siczewicz, ArcIMS Interactive Map Designer; Robert Will, Cartographic Assistant. Copyright The Newberry Library 2008.</ref> (Free) Enter a year, '''Refresh Map''', select '''zoom in''', then click on the map to enlarge it.}}
{{Note|See an interactive outline map of [http://historical-county.newberry.org/website/Michigan/viewer.htm ''Michigan Historical Counties''] at Newberry Library site<ref>[http://historical-county.newberry.org/website/Michigan/viewer.htm ''Michigan Atlas of Historical County Boundaries'', John H. Long, Editor; Peggy Tuck Sinko, Associate Editor; Gordon DenBoer, Historical Compiler; Douglas Knox, Book Digitizing Director and Digital Compiler; Emily Kelley, Research Associate; Laura Rico-Beck, GIS Specialist; Peter Siczewicz, ArcIMS Interactive Map Designer; Robert Will, Cartographic Assistant. Copyright The Newberry Library 2008.</ref> (Free) Enter a year, '''Refresh Map''', select '''zoom in''', then click on the map to enlarge it.}}  


<br>
<br> {{Tip|Sort the table by '''Date Formed''' or by '''Parent Counties''' and check [http://historical-county.newberry.org/website/Michigan/documents/MI_County_Index.htm Boundary Changes] for interesting insights.}}  
{{Tip|Sort the table by '''Date Formed''' or by '''Parent Counties''' and check [http://historical-county.newberry.org/website/Michigan/documents/MI_County_Index.htm Boundary Changes] for interesting insights.}}
 
{| border="1" width="100%" class="sortable"
{| width="100%" border="1" class="sortable"
|-
|-
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Name of County'''  
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%;" | '''Name of County'''  
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Date Formed'''  
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%;" | '''Date Formed'''  
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" |'''Boundary<br>Changes'''  
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%;" | '''Boundary<br>Changes'''  
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Parent County'''  
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%;" | '''Parent County'''  
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;" | '''Counties Created by Boundary Changes'''
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%;" | '''Counties Created by Boundary Changes'''
|-
|-
| [[Aishcum County, Michigan Genealogy|Aishcum]]  
| [[Aishcum County, Michigan Genealogy|Aishcum]]  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#AISHCUM Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#AISHCUM Details]  
| Oceana  
| Oceana  
| renamed Lake 1843
| renamed Lake 1843
|-
|-
| [[Alcona County, Michigan Genealogy|Alcona]]  
| [[Alcona County, Michigan Genealogy|Alcona]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ALCONA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ALCONA Details]  
| renamed from Neewago  
| renamed from Neewago  
| Oscoda
| Oscoda
|-
|-
| [[Alger County, Michigan Genealogy|Alger]]  
| [[Alger County, Michigan Genealogy|Alger]]  
| 1885 Mar 17  
| 1885 Mar 17  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ALGER Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ALGER Details]  
| Schoolcraft  
| Schoolcraft  
| none
| none
|-
|-
| [[Allegan County, Michigan Genealogy|Allegan]]  
| [[Allegan County, Michigan Genealogy|Allegan]]  
| 1831 Mar 02  
| 1831 Mar 02  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ALLEGAN Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ALLEGAN Details]  
| Kalamazoo  
| Kalamazoo  
| none
| none
|-
|-
| [[Alpena County, Michigan Genealogy|Alpena]]  
| [[Alpena County, Michigan Genealogy|Alpena]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ALPENA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ALPENA Details]  
| renamed from Anamickee  
| renamed from Anamickee  
| Alcona 1869, Oscoda 1840, Otsego 1840
| Alcona 1869, Oscoda 1840, Otsego 1840
|-
|-
| Anamickee  
| Anamickee  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Alpena 1843
| renamed Alpena 1843
|-
|-
| [[Antrim County, Michigan Genealogy|Antrim]]  
| [[Antrim County, Michigan Genealogy|Antrim]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ANTRIM Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ANTRIM Details]  
| renamed from Meegisee  
| renamed from Meegisee  
| none
| none
|-
|-
| [[Arenac County, Michigan Genealogy|Arenac]]  
| [[Arenac County, Michigan Genealogy|Arenac]]  
| 1831 Mar 02  
| 1831 Mar 02  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ARENAC Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ARENAC Details]  
| Bay, Saginaw  
| Bay, Saginaw  
| none
| none
|-
|-
| [[Baraga County, Michigan Genealogy|Baraga]]  
| [[Baraga County, Michigan Genealogy|Baraga]]  
| 1875 Feb 19  
| 1875 Feb 19  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#BARAGA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#BARAGA Details]  
| Houghton  
| Houghton  
| none
| none
|-
|-
| [[Barry County, Michigan Genealogy|Barry]]  
| [[Barry County, Michigan Genealogy|Barry]]  
| 1829 Oct 29  
| 1829 Oct 29  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#BARRY Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#BARRY Details]  
| St. Joseph, Kalamazoo  
| St. Joseph, Kalamazoo  
| none
| none
|-
|-
| [[Bay County, Michigan Genealogy|Bay]]  
| [[Bay County, Michigan Genealogy|Bay]]  
| 1857 Feb 17  
| 1857 Feb 17  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#BAY Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#BAY Details]  
| Saginaw, Midland  
| Saginaw, Midland  
| Arenac 1831
| Arenac 1831
|-
|-
| [[Benzie County, Michigan Genealogy|Benzie]]  
| [[Benzie County, Michigan Genealogy|Benzie]]  
| 1863 Feb 27  
| 1863 Feb 27  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#BENZIE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#BENZIE Details]  
| Grand Traverse, Leelanau  
| Grand Traverse, Leelanau  
| none
| none
|-
|-
| [[Berrien County, Michigan Genealogy|Berrien]]  
| [[Berrien County, Michigan Genealogy|Berrien]]  
| 1829 Oct 29  
| 1829 Oct 29  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#BERRIEN Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#BERRIEN Details]  
| Cass  
| Cass  
| none
| none
|-
|-
| Bleeker  
| Bleeker  
| 1861 1 18  
| 1861 1 18  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Marquette  
| Marquette  
| renamed Menominee 1863
| renamed Menominee 1863
|-
|-
| [[Branch County, Michigan Genealogy|Branch]]  
| [[Branch County, Michigan Genealogy|Branch]]  
| 1829 Oct 29  
| 1829 Oct 29  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#BRANCH Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#BRANCH Details]  
| Michigan Territory  
| Michigan Territory  
| none
| none
|-
|-
| [[Brown_County,_Wisconsin|Brown]]
| [[Brown County, Wisconsin|Brown]]  
| 1818 Oct 26  
| 1818 Oct 26  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| now in State of Wisconsin
| now in State of Wisconsin
|-
|-
| [[Calhoun County, Michigan Genealogy|Calhoun]]  
| [[Calhoun County, Michigan Genealogy|Calhoun]]  
| 1829 Oct 29  
| 1829 Oct 29  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CALHOUN Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CALHOUN Details]  
| St. Joseph, Kalamazoo  
| St. Joseph, Kalamazoo  
| Eaton 1829
| Eaton 1829
|-
|-
| [[Cass County, Michigan Genealogy|Cass]]  
| [[Cass County, Michigan Genealogy|Cass]]  
| 1829 Oct 29  
| 1829 Oct 29  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CASS Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CASS Details]  
| Lenawee  
| Lenawee  
| Berrien 1829, Van Buren 1837
| Berrien 1829, Van Buren 1837
|-
|-
| [[Charlevoix County, Michigan Genealogy|Charlevoix]]  
| [[Charlevoix County, Michigan Genealogy|Charlevoix]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CHARLEVOIX Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CHARLEVOIX Details]  
| renamed from Reshkaiko  
| renamed from Reshkaiko  
| none
| none
|-
|-
| [[Cheboygan County, Michigan Genealogy|Cheboygan]]  
| [[Cheboygan County, Michigan Genealogy|Cheboygan]]  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CHEBOYGAN Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CHEBOYGAN Details]  
| Mackinac  
| Mackinac  
| Alcona 1859, Alpena 1857, Forrest 1913, Iosco 1857, Ogemaw 1875, Oscoda 1840, Otsego 1840
| Alcona 1859, Alpena 1857, Forrest 1913, Iosco 1857, Ogemaw 1875, Oscoda 1840, Otsego 1840
|-
|-
| Cheonoquet  
| Cheonoquet  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Montmorency 1843
| renamed Montmorency 1843
|-
|-
| [[Chippewa County, Michigan Genealogy|Chippewa]]  
| [[Chippewa County, Michigan Genealogy|Chippewa]]  
| 1826 Dec 26  
| 1826 Dec 26  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CHIPPEWA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CHIPPEWA Details]  
| Mackinac  
| Mackinac  
| Houghton 1845, Luce 1887, Ontonagon 1848, Schoolcraft 1848
| Houghton 1845, Luce 1887, Ontonagon 1848, Schoolcraft 1848
|-
|-
| [[Clare County, Michigan Genealogy|Clare]]  
| [[Clare County, Michigan Genealogy|Clare]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CLARE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CLARE Details]  
| renamed from Kaykakee  
| renamed from Kaykakee  
| none
| none
|-
|-
| [[Clinton County, Michigan Genealogy|Clinton]]  
| [[Clinton County, Michigan Genealogy|Clinton]]  
| 1831 Mar 02  
| 1831 Mar 02  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CLINTON Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CLINTON Details]  
| Shiawassee, Kent  
| Shiawassee, Kent  
| Gratiot 1855
| Gratiot 1855
|-
|-
| [[Crawford_County,_Wisconsin|Crawford]] (old)  
| [[Crawford County, Wisconsin|Crawford]] (old)  
| 1818 Oct 26  
| 1818 Oct 26  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| now in State of Wisconsin
| now in State of Wisconsin
|-
|-
| [[Crawford County, Michigan Genealogy|Crawford]]  
| [[Crawford County, Michigan Genealogy|Crawford]]  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CRAWFORD Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#CRAWFORD Details]  
| Michigan Territory<br>  
| Michigan Territory<br>  
| none
| none
|-
|-
| [[Delta County, Michigan Genealogy|Delta]]  
| [[Delta County, Michigan Genealogy|Delta]]  
| 1843 Mar 09  
| 1843 Mar 09  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#DELTA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#DELTA Details]  
| Schoolcraft  
| Schoolcraft  
| none
| none
|-
|-
| Demoine  
| Demoine  
| 1833 Jun 01  
| 1833 Jun 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| now in State of Iowa
| now in State of Iowa
|-
|-
| [[Dickinson County, Michigan Genealogy|Dickinson]]  
| [[Dickinson County, Michigan Genealogy|Dickinson]]  
| 1851 Jan 15  
| 1851 Jan 15  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#DICKINSON Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#DICKINSON Details]  
| Kossuth  
| Kossuth  
| Emmet 1851
| Emmet 1851
|-
|-
| [[Dubuque_County,_Iowa|Dubuque]] (old)  
| [[Dubuque County, Iowa|Dubuque]] (old)  
| 1834 Sep 06  
| 1834 Sep 06  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| now in State of Iowa
| now in State of Iowa
|-
|-
| [[Eaton County, Michigan Genealogy|Eaton]]  
| [[Eaton County, Michigan Genealogy|Eaton]]  
| 1829 Oct 29  
| 1829 Oct 29  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#EATON Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#EATON Details]  
| St. Joseph, Calhoun, Kalamazoo  
| St. Joseph, Calhoun, Kalamazoo  
| Ingham 1829
| Ingham 1829
|-
|-
| [[Emmet County, Michigan Genealogy|Emmet]]  
| [[Emmet County, Michigan Genealogy|Emmet]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#EMMET Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#EMMET Details]  
| renamed from Tonedagana  
| renamed from Tonedagana  
| Charlevoix 1869
| Charlevoix 1869
|-
|-
| [[Genesee County, Michigan Genealogy|Genesee]]  
| [[Genesee County, Michigan Genealogy|Genesee]]  
| 1836 Mar 08  
| 1836 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#GENESEE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#GENESEE Details]  
| Oakland  
| Oakland  
| none
| none
|-
|-
| [[Gladwin County, Michigan Genealogy|Gladwin]]  
| [[Gladwin County, Michigan Genealogy|Gladwin]]  
| 1831 Mar 02  
| 1831 Mar 02  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#GLADWIN Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#GLADWIN Details]  
| Saginaw, Midland  
| Saginaw, Midland  
| none
| none
|-
|-
| [[Gogebic County, Michigan Genealogy|Gogebic]]  
| [[Gogebic County, Michigan Genealogy|Gogebic]]  
| 1881 Feb 07  
| 1881 Feb 07  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#GOGEBIC Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#GOGEBIC Details]  
| Ontonagon  
| Ontonagon  
| none
| none
|-
|-
| [[Grand Traverse County, Michigan Genealogy|Grand Traverse]]  
| [[Grand Traverse County, Michigan Genealogy|Grand Traverse]]  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#GRAND TRAVERSE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#GRAND TRAVERSE Details]  
| Mackinac  
| Mackinac  
| Antrim 1843, Benzie 1863, Leelanau 1863
| Antrim 1843, Benzie 1863, Leelanau 1863
|-
|-
| [[Gratiot County, Michigan Genealogy|Gratiot]]  
| [[Gratiot County, Michigan Genealogy|Gratiot]]  
| 1831 Mar 02  
| 1831 Mar 02  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#GRATIOT Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#GRATIOT Details]  
| Saginaw, Clinton  
| Saginaw, Clinton  
| none
| none
|-
|-
| [[Hillsdale County, Michigan Genealogy|Hillsdale]]  
| [[Hillsdale County, Michigan Genealogy|Hillsdale]]  
| 1829 Oct 29  
| 1829 Oct 29  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#HILLSDALE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#HILLSDALE Details]  
| Lenawee  
| Lenawee  
| none
| none
|-
|-
| [[Houghton County, Michigan Genealogy|Houghton]]  
| [[Houghton County, Michigan Genealogy|Houghton]]  
| 1845 Mar 09  
| 1845 Mar 09  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#HOUGHTON Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#HOUGHTON Details]  
| Chippewa  
| Chippewa  
| Baraga 1875, Keweenaw 1861, Ontonagon 1848, Schoolcraft 1848
| Baraga 1875, Keweenaw 1861, Ontonagon 1848, Schoolcraft 1848
|-
|-
| [[Huron County, Michigan Genealogy|Huron]]  
| [[Huron County, Michigan Genealogy|Huron]]  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#HURON Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#HURON Details]  
| Saginaw, St. Clair, Sanilac  
| Saginaw, St. Clair, Sanilac  
| none
| none
|-
|-
| [[Ingham County, Michigan Genealogy|Ingham]]  
| [[Ingham County, Michigan Genealogy|Ingham]]  
| 1829 Oct 29  
| 1829 Oct 29  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#INGHAM Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#INGHAM Details]  
| Washtenaw, Eaton, Jackson  
| Washtenaw, Eaton, Jackson  
| none
| none
|-
|-
| [[Ionia County, Michigan Genealogy|Ionia]]  
| [[Ionia County, Michigan Genealogy|Ionia]]  
| 1831 Mar 02  
| 1831 Mar 02  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#IONIA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#IONIA Details]  
| Kent  
| Kent  
| Montcalm 1831
| Montcalm 1831
|-
|-
| [[Iosco County, Michigan Genealogy|Iosco]]  
| [[Iosco County, Michigan Genealogy|Iosco]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#IOSCO Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#IOSCO Details]  
| renamed from Kanotin  
| renamed from Kanotin  
| Ogemaw 1875
| Ogemaw 1875
|-
|-
| [[Iowa_County,_Wisconsin|Iowa]]  
| [[Iowa County, Wisconsin|Iowa]]  
| 1829 Oct 09  
| 1829 Oct 09  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| now in State of Wisconsin
| now in State of Wisconsin
|-
|-
| [[Iron County, Michigan Genealogy|Iron]]  
| [[Iron County, Michigan Genealogy|Iron]]  
| 1885 Apr 03  
| 1885 Apr 03  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#IRON Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#IRON Details]  
| Marquette, Menominee  
| Marquette, Menominee  
| none
| none
|-
|-
| [[Isabella County, Michigan Genealogy|Isabella]]  
| [[Isabella County, Michigan Genealogy|Isabella]]  
| 1831 Mar 02  
| 1831 Mar 02  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ISABELLA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ISABELLA Details]  
| Saginaw, Midland  
| Saginaw, Midland  
| Clare 1871
| Clare 1871
|-
|-
| Isle Royal  
| Isle Royal  
| 1875 5 18  
| 1875 5 18  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Keweenaw  
| Keweenaw  
| dissolved 1897, part of Keweenaw
| dissolved 1897, part of Keweenaw
|-
|-
| [[Jackson County, Michigan Genealogy|Jackson]]  
| [[Jackson County, Michigan Genealogy|Jackson]]  
| 1829 Oct 29  
| 1829 Oct 29  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#JACKSON Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#JACKSON Details]  
| Washtenaw  
| Washtenaw  
| none
| none
|-
|-
| [[Kalamazoo County, Michigan Genealogy|Kalamazoo]]  
| [[Kalamazoo County, Michigan Genealogy|Kalamazoo]]  
| 1829 Oct 29  
| 1829 Oct 29  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#KALAMAZOO Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#KALAMAZOO Details]  
| St. Joseph  
| St. Joseph  
| Allegan 1835, Barry 1829, Calhoun 1829, Eaton 1829, Kent 1836
| Allegan 1835, Barry 1829, Calhoun 1829, Eaton 1829, Kent 1836
|-
|-
| [[Kalkaska County, Michigan Genealogy|Kalkaska]]  
| [[Kalkaska County, Michigan Genealogy|Kalkaska]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#KALKASKA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#KALKASKA Details]  
| renamed from Wabasee  
| renamed from Wabasee  
| none
| none
|-
|-
| Kanotin  
| Kanotin  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Iosco 1843
| renamed Iosco 1843
|-
|-
| Kautawaubet  
| Kautawaubet  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Wexford 1843
| renamed Wexford 1843
|-
|-
| Kaykakee  
| Kaykakee  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Clare 1843
| renamed Clare 1843
|-
|-
| [[Kent County, Michigan Genealogy|Kent]]  
| [[Kent County, Michigan Genealogy|Kent]]  
| 1831 Mar 02  
| 1831 Mar 02  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#KENT Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#KENT Details]  
| Kalamazoo  
| Kalamazoo  
| Clinton 1839, Ionia 1831, Mecosta 1859, Newaygo 1840, Ottawa 1837
| Clinton 1839, Ionia 1831, Mecosta 1859, Newaygo 1840, Ottawa 1837
|-
|-
| [[Keweenaw County, Michigan Genealogy|Keweenaw]]  
| [[Keweenaw County, Michigan Genealogy|Keweenaw]]  
| 1861 Mar 11  
| 1861 Mar 11  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#KEWEENAW Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#KEWEENAW Details]  
| Houghton, Iowa  
| Houghton, Iowa  
| Isle Royal (dissolved 1897)
| Isle Royal (dissolved 1897)
|-
|-
| [[Lake County, Michigan Genealogy|Lake]]  
| [[Lake County, Michigan Genealogy|Lake]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#LAKE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#LAKE Details]  
| renamed from Aishcum  
| renamed from Aishcum  
| none
| none
|-
|-
| [[Lapeer County, Michigan Genealogy|Lapeer]]  
| [[Lapeer County, Michigan Genealogy|Lapeer]]  
| 1822 Sep 10  
| 1822 Sep 10  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#LAPEER Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#LAPEER Details]  
| Oakland  
| Oakland  
| Sanilac 1848
| Sanilac 1848
|-
|-
| [[Leelanau County, Michigan Genealogy|Leelanau]]  
| [[Leelanau County, Michigan Genealogy|Leelanau]]  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#LEELANAU Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#LEELANAU Details]  
| Grand Traverse  
| Grand Traverse  
| Benzie 1863
| Benzie 1863
|-
|-
| [[Lenawee County, Michigan Genealogy|Lenawee]]  
| [[Lenawee County, Michigan Genealogy|Lenawee]]  
| 1822 Sep 10  
| 1822 Sep 10  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#LENAWEE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#LENAWEE Details]  
| Indian lands  
| Indian lands  
| Cass 1829, Hillsdale 1835
| Cass 1829, Hillsdale 1835
|-
|-
| [[Livingston County, Michigan Genealogy|Livingston]]  
| [[Livingston County, Michigan Genealogy|Livingston]]  
| 1836 Mar 24  
| 1836 Mar 24  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#LIVINGSTON Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#LIVINGSTON Details]  
| Shiawassee, Washtenaw  
| Shiawassee, Washtenaw  
| none
| none
|-
|-
| [[Luce County, Michigan Genealogy|Luce]]  
| [[Luce County, Michigan Genealogy|Luce]]  
| 1887 Mar 01  
| 1887 Mar 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#LUCE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#LUCE Details]  
| Chippewa, Mackinac  
| Chippewa, Mackinac  
| none
| none
|-
|-
| [[Mackinac County, Michigan Genealogy|Mackinac]]  
| [[Mackinac County, Michigan Genealogy|Mackinac]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MACKINAC Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MACKINAC Details]  
| renamed from Michilimackinac  
| renamed from Michilimackinac  
| Cheboygan 1840, Chippewa 1826, Emmet 1853, Grand Traverse 1840, Luce 1887, Manistee 1855, Otsego 1840
| Cheboygan 1840, Chippewa 1826, Emmet 1853, Grand Traverse 1840, Luce 1887, Manistee 1855, Otsego 1840
|-
|-
| [[Macomb County, Michigan Genealogy|Macomb]]  
| [[Macomb County, Michigan Genealogy|Macomb]]  
| 1818 Mar 11  
| 1818 Mar 11  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MACOMB Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MACOMB Details]  
| Wayne  
| Wayne  
| none
| none
|-
|-
| [[Manistee County, Michigan Genealogy|Manistee]]  
| [[Manistee County, Michigan Genealogy|Manistee]]  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MANISTEE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MANISTEE Details]  
| Mackinac, Ottawa, Oceana  
| Mackinac, Ottawa, Oceana  
| none
| none
|-
|-
| Manitou  
| Manitou  
| 1855 Feb 13  
| 1855 Feb 13  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| dissolved 1895
| dissolved 1895
|-
|-
| [[Marquette County, Michigan Genealogy|Marquette]]  
| [[Marquette County, Michigan Genealogy|Marquette]]  
| 1843 Mar 09  
| 1843 Mar 09  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MARQUETTE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MARQUETTE Details]  
| Schoolcraft  
| Schoolcraft  
| Dickinson 1891, Iron 1885, Menominee 1863, Washington 1867
| Dickinson 1891, Iron 1885, Menominee 1863, Washington 1867
|-
|-
| [[Mason County, Michigan Genealogy|Mason]]  
| [[Mason County, Michigan Genealogy|Mason]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MASON Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MASON Details]  
| renamed from Notipekago  
| renamed from Notipekago  
| Lake 1871, Osceola 1869
| Lake 1871, Osceola 1869
|-
|-
| [[Mecosta County, Michigan Genealogy|Mecosta]]  
| [[Mecosta County, Michigan Genealogy|Mecosta]]  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MECOSTA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MECOSTA Details]  
| Kent, Newaygo  
| Kent, Newaygo  
| Clare 1871, Osceola 1869
| Clare 1871, Osceola 1869
|-
|-
| Meegisee  
| Meegisee  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Antrim 1843
| renamed Antrim 1843
|-
|-
| [[Menominee County, Michigan Genealogy|Menominee]]  
| [[Menominee County, Michigan Genealogy|Menominee]]  
| 1863 Mar 19  
| 1863 Mar 19  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MENOMINEE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MENOMINEE Details]  
| renamed from Bleeker 1861  
| renamed from Bleeker 1861  
| Dickinson 1891, Iron 1885
| Dickinson 1891, Iron 1885
|-
|-
| Michilimackinac  
| Michilimackinac  
| 1818 Oct 26  
| 1818 Oct 26  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Mackinac 1843
| renamed Mackinac 1843
|-
|-
| [[Midland County, Michigan Genealogy|Midland]]  
| [[Midland County, Michigan Genealogy|Midland]]  
| 1831 Mar 02  
| 1831 Mar 02  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MIDLAND Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MIDLAND Details]  
| Saginaw  
| Saginaw  
| Bay 1857, Clare 1871, Gladwin 1855, Isabella 1831, Ogemaw 1875
| Bay 1857, Clare 1871, Gladwin 1855, Isabella 1831, Ogemaw 1875
|-
|-
| Mikensauk  
| Mikensauk  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Roscommon 1843
| renamed Roscommon 1843
|-
|-
| [[Milwaukee_County,_Wisconsin|Milwaukee]]
| [[Milwaukee County, Wisconsin|Milwaukee]]  
| 1834 Sep 06  
| 1834 Sep 06  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| now in State of Wisconsin
| now in State of Wisconsin
|-
|-
| [[Monroe County, Michigan Genealogy|Monroe]]  
| [[Monroe County, Michigan Genealogy|Monroe]]  
| 1817 Jul 14  
| 1817 Jul 14  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MONROE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MONROE Details]  
| Wayne  
| Wayne  
| none
| none
|-
|-
| [[Montcalm County, Michigan Genealogy|Montcalm]]  
| [[Montcalm County, Michigan Genealogy|Montcalm]]  
| 1831 Mar 02  
| 1831 Mar 02  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MONTCALM Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MONTCALM Details]  
| Ionia  
| Ionia  
| none
| none
|-
|-
| [[Montmorency County, Michigan Genealogy|Montmorency]]  
| [[Montmorency County, Michigan Genealogy|Montmorency]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MONTMORENCY Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MONTMORENCY Details]  
| renamed from Cheonoguet  
| renamed from Cheonoguet  
| none
| none
|-
|-
| [[Muskegon County, Michigan Genealogy|Muskegon]]  
| [[Muskegon County, Michigan Genealogy|Muskegon]]  
| 859 Feb 04  
| 859 Feb 04  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MUSKEGON Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#MUSKEGON Details]  
| Ottawa, Newaygo  
| Ottawa, Newaygo  
| none
| none
|-
|-
| Negwegon (old)  
| Negwegon (old)  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Alcona 1843
| renamed Alcona 1843
|-
|-
| [[Newaygo County, Michigan Genealogy|Newaygo]]  
| [[Newaygo County, Michigan Genealogy|Newaygo]]  
| 1840 Ap 01  
| 1840 Ap 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#NEWAYGO Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#NEWAYGO Details]  
| Kent, Muskegon, Oceana  
| Kent, Muskegon, Oceana  
| Lake 1871, Mecosta 1854, Osceola 1869, Muskegon 1859
| Lake 1871, Mecosta 1854, Osceola 1869, Muskegon 1859
|-
|-
| Notipekago  
| Notipekago  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Mason 1843
| renamed Mason 1843
|-
|-
| [[Oakland County, Michigan Genealogy|Oakland]]  
| [[Oakland County, Michigan Genealogy|Oakland]]  
| 1819 Jan 12  
| 1819 Jan 12  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OAKLAND Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OAKLAND Details]  
| Michigan Territory  
| Michigan Territory  
| Genesee 1836, lapeer 1835, Sanilac 1848, Saginaw 1822, Shaiwassee 1822
| Genesee 1836, lapeer 1835, Sanilac 1848, Saginaw 1822, Shaiwassee 1822
|-
|-
| [[Oceana County, Michigan Genealogy|Oceana]]  
| [[Oceana County, Michigan Genealogy|Oceana]]  
| 1831 Mar 02  
| 1831 Mar 02  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OCEANA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OCEANA Details]  
| Ottawa  
| Ottawa  
| Lake 1871, Manistee 1855, Mason 1855, Newaygo 1840
| Lake 1871, Manistee 1855, Mason 1855, Newaygo 1840
|-
|-
| [[Ogemaw County, Michigan Genealogy|Ogemaw]]  
| [[Ogemaw County, Michigan Genealogy|Ogemaw]]  
| 1875 Feb 27  
| 1875 Feb 27  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OGEMAW Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OGEMAW Details]  
| Cheboygan, Midland, Iosco  
| Cheboygan, Midland, Iosco  
| none
| none
|-
|-
| Okkado  
| Okkado  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Otsego 1843
| renamed Otsego 1843
|-
|-
| [[Ontonagon County, Michigan Genealogy|Ontonagon]]  
| [[Ontonagon County, Michigan Genealogy|Ontonagon]]  
| 1848 Apr 03  
| 1848 Apr 03  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ONTONAGON Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ONTONAGON Details]  
| Chippewa, Houghton  
| Chippewa, Houghton  
| Gogebic 1881
| Gogebic 1881
|-
|-
| [[Osceola County, Michigan Genealogy|Osceola]]  
| [[Osceola County, Michigan Genealogy|Osceola]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OSCEOLA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OSCEOLA Details]  
| renamed from Unwattin  
| renamed from Unwattin  
| none
| none
|-
|-
| [[Oscoda County, Michigan Genealogy|Oscoda]]  
| [[Oscoda County, Michigan Genealogy|Oscoda]]  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OSCODA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OSCODA Details]  
| Michigan Territory  
| Michigan Territory  
| none
| none
|-
|-
| [[Otsego County, Michigan Genealogy|Otsego]]  
| [[Otsego County, Michigan Genealogy|Otsego]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OTSEGO Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OTSEGO Details]  
| renamed from Okkado  
| renamed from Okkado  
| none
| none
|-
|-
| [[Ottawa County, Michigan Genealogy|Ottawa]]  
| [[Ottawa County, Michigan Genealogy|Ottawa]]  
| 1831 Mar 02  
| 1831 Mar 02  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OTTAWA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#OTTAWA Details]  
| Kent  
| Kent  
| Manistee 1855, Mason 1855
| Manistee 1855, Mason 1855
|-
|-
| [[Presque Isle County, Michigan Genealogy|Presque Isle]]  
| [[Presque Isle County, Michigan Genealogy|Presque Isle]]  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#PRESQUE ISLE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#PRESQUE ISLE Details]  
| Michigan Territory  
| Michigan Territory  
| none
| none
|-
|-
| Reshkaiko  
| Reshkaiko  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Charlevoix 1843
| renamed Charlevoix 1843
|-
|-
| [[Roscommon County, Michigan Genealogy|Roscommon]]  
| [[Roscommon County, Michigan Genealogy|Roscommon]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ROSCOMMON Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ROSCOMMON Details]  
| renamed from Mikenauk  
| renamed from Mikenauk  
| none
| none
|-
|-
| [[Saginaw County, Michigan Genealogy|Saginaw]]  
| [[Saginaw County, Michigan Genealogy|Saginaw]]  
| 1822 Sep 10  
| 1822 Sep 10  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#SAGINAW Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#SAGINAW Details]  
| Oakland  
| Oakland  
| Arenac 1883, Bay 1857, Gladwin 1855, Gratiot 1855, Huron 1840, Iosco 1857, Isabella 1831, Midland 1850
| Arenac 1883, Bay 1857, Gladwin 1855, Gratiot 1855, Huron 1840, Iosco 1857, Isabella 1831, Midland 1850
|-
|-
| [[St. Clair County, Michigan Genealogy|St. Clair]]  
| [[St. Clair County, Michigan Genealogy|St. Clair]]  
| 1820 Sep 10  
| 1820 Sep 10  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ST. CLAIR Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ST. CLAIR Details]  
| Wayne  
| Wayne  
| Huron 1840, Sanilac 1848
| Huron 1840, Sanilac 1848
|-
|-
| [[St. Joseph County, Michigan Genealogy|St. Joseph]]  
| [[St. Joseph County, Michigan Genealogy|St. Joseph]]  
| 1829 Oct 29  
| 1829 Oct 29  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ST. JOSEPH Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#ST. JOSEPH Details]  
| Wayne  
| Wayne  
| Barry 1829, Calhoun 1829, Eaton 1829, Kalamazoo 1829
| Barry 1829, Calhoun 1829, Eaton 1829, Kalamazoo 1829
|-
|-
| [[Sanilac County, Michigan Genealogy|Sanilac]]  
| [[Sanilac County, Michigan Genealogy|Sanilac]]  
| 1822 Sep 10  
| 1822 Sep 10  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#SANILAC Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#SANILAC Details]  
| Oakland, St. Clair, Lapeer  
| Oakland, St. Clair, Lapeer  
| Huron 1840, Tuscola 1850
| Huron 1840, Tuscola 1850
|-
|-
| [[Schoolcraft County, Michigan Genealogy|Schoolcraft]]  
| [[Schoolcraft County, Michigan Genealogy|Schoolcraft]]  
| 1843 Mar 09  
| 1843 Mar 09  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#SCHOOLCRAFT Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#SCHOOLCRAFT Details]  
| Chippewa, Houghton  
| Chippewa, Houghton  
| Alger 1855, Delta 1861, Marquette 1851
| Alger 1855, Delta 1861, Marquette 1851
|-
|-
| [[Shawano County, Wisconsin Genealogy|Shawano]]  
| [[Shawano County, Wisconsin Genealogy|Shawano]]  
| 1818 Oct 26  
| 1818 Oct 26  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#SHAWANO Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#SHAWANO Details]  
| Michigan Territory  
| Michigan Territory  
| now in State of Wisconsin
| now in State of Wisconsin
|-
|-
| [[Shiawassee County, Michigan Genealogy|Shiawassee]]  
| [[Shiawassee County, Michigan Genealogy|Shiawassee]]  
| 1822 Sep 10  
| 1822 Sep 10  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#SHIAWASSEE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#SHIAWASSEE Details]  
| Oakland, Genesee  
| Oakland, Genesee  
| Clitnon 1839, Livingston 1836
| Clitnon 1839, Livingston 1836
|-
|-
| Tonedagana  
| Tonedagana  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Emmet 1843
| renamed Emmet 1843
|-
|-
| [[Tuscola County, Michigan Genealogy|Tuscola]]  
| [[Tuscola County, Michigan Genealogy|Tuscola]]  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#TUSCOLA Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#TUSCOLA Details]  
| Sanilac  
| Sanilac  
| none
| none
|-
|-
| Unwattin  
| Unwattin  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Osceola 1843
| renamed Osceola 1843
|-
|-
| [[Van Buren County, Michigan Genealogy|Van Buren]]  
| [[Van Buren County, Michigan Genealogy|Van Buren]]  
| 1829 Oct 29  
| 1829 Oct 29  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#VAN BUREN Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#VAN BUREN Details]  
| Cass  
| Cass  
| none
| none
|-
|-
| Wabasee  
| Wabasee  
| 1840 Apr 01  
| 1840 Apr 01  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm# Details]  
| Michigan Territory  
| Michigan Territory  
| renamed Kalkaska 1843
| renamed Kalkaska 1843
|-
|-
| [[Washtenaw County, Michigan Genealogy|Washtenaw]]  
| [[Washtenaw County, Michigan Genealogy|Washtenaw]]  
| 1822 Nov 20  
| 1822 Nov 20  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#WASHTENAW Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#WASHTENAW Details]  
| Wayne  
| Wayne  
| Livingston 1836, Ingahm 1829, Jackson 1832
| Livingston 1836, Ingahm 1829, Jackson 1832
|-
|-
| [[Wayne County, Michigan Genealogy|Wayne]]  
| [[Wayne County, Michigan Genealogy|Wayne]]  
| 1796 Aug 18  
| 1796 Aug 18  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#WAYNE Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#WAYNE Details]  
| Northwest Territory  
| Northwest Territory  
| Michilimackinac 1818, Macomb 1818, Monroe 1817, St. Clair 1820, St. Joseph 1820, Washtenaw 1826
| Michilimackinac 1818, Macomb 1818, Monroe 1817, St. Clair 1820, St. Joseph 1820, Washtenaw 1826
|-
|-
| [[Wexford County, Michigan Genealogy|Wexford]]  
| [[Wexford County, Michigan Genealogy|Wexford]]  
| 1843 Mar 08  
| 1843 Mar 08  
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#WEXFORD Details]
| [http://publications.newberry.org/ahcbp/documents/MI_Individual_County_Chronologies.htm#WEXFORD Details]  
| renamed from Kautawaubet  
| renamed from Kautawaubet  
| none
| none
|}
|}
 
==References==
{{Reflist}}
[[Category:United_States_County_Creations]]
[[Category:United_States_County_Creations]]
Rontilby
77

edits

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