Oregon County Creation Dates and Parent Counties: Difference between revisions

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{{Note|See an interactive outline map of [https://digital.newberry.org/ahcb/map/map.html#OR ''Oregon Historical Counties''] at Newberry Library site.<ref>[https://digital.newberry.org/ahcb/pages/Oregon.html ''Oregon 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> Select a year and the map will display the historical county boundaries. Click on map image for county details.}}  
{{Note|See an interactive outline map of [http://historical-county.newberry.org/website/Oregon/viewer.htm ''Oregon Historical Counties''] at Newberry Library site<ref>[http://historical-county.newberry.org/website/Oregon/viewer.htm ''Oregon 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> {{Tip|Sort the table by '''Date Formed''' or by '''Parent Counties''' and check [https://digital.newberry.org/ahcb/documents/OR_County_Index.htm Boundary Changes] for interesting insights.}}  
<br>
 
{{Tip|Sort the table by '''Date Formed''' or by '''Parent Counties''' and check [http://historical-county.newberry.org/website/Oregon/documents/OR_County_Index.htm Boundary Changes] for interesting insights.}}
{| width="100%" border="1" class="sortable"
{| border="1" width="100%" class="sortable"
|-
|-
| 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;" | '''Name of County'''  
| 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;" | '''Date Formed'''  
| 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;" |'''Boundary<br>Changes'''  
| 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;" | '''Parent County'''  
| align="center" style="background: rgb(240, 240, 240) none repeat scroll 0% 0%;" | '''Counties Created by Boundary 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;" | '''Counties Created by Boundary Changes'''
|-
|-
| [[Baker County, Oregon Genealogy|Baker]]  
| [[Baker County, Oregon|Baker]]  
| 1862 Sep 22  
| 1862 Sep 22  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#BAKER Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#BAKER Details]
| [[Wasco County, Oregon Genealogy|Wasco]]  
| [[Wasco County, Oregon|Wasco]]  
| [[Malheur County, Oregon Genealogy|Malheur]] 1887, [[Union County, Oregon Genealogy|Union]] 1864
| [[Malheur County, Oregon|Malheur]] 1887, [[Union County, Oregon|Union]] 1864
|-
|-
| [[Benton County, Oregon Genealogy|Benton]]  
| [[Benton County, Oregon|Benton]]  
| 1847 Dec 23  
| 1847 Dec 23  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#BENTON Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#BENTON Details]
| [[Polk County, Oregon Genealogy|Polk]]  
| [[Polk County, Oregon|Polk]]  
| [[Lincoln County, Oregon Genealogy|Lincoln]] 1893, [[Umpqua County, Oregon Genealogy|Umpqua]] 1851
| [[Lincoln County, Oregon|Lincoln]] 1893, [[Umpqua County, Oregon|Umpqua]] 1851
|-
|-
| [[Champoeg County, Oregon Genealogy|Champoeg]]  
| [[Champoeg County, Oregon|Champoeg]]  
| 1843 Jul 05  
| 1843 Jul 05  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#CHAMPOEG Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#CHAMPOEG Details]
| [[Oregon Territory]]
| [[Oregon Country|Oregon Country]]  
| [[Linn County, Oregon Genealogy|Linn]] 1847, renamed [[Marion County, Oregon Genealogy|Marion]] 1849
| [[Linn County, Oregon|Linn]] 1847, renamed [[Marion County, Oregon|Marion]] 1849
|-
|-
| [[Clackamas County, Oregon Genealogy|Clackamas]]  
| [[Clackamas County, Oregon|Clackamas]]  
| 1843 Jul 05  
| 1843 Jul 05  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#CLACKAMAS Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#CLACKAMAS Details]
| [[Oregon Territory]]  
| [[Oregon Country|Oregon Country]]  
| [[Multnomah County, Oregon Genealogy|Multnomah]] 1854, [[Wasco County, Oregon Genealogy|Wasco]] 1854
| [[Multnomah County, Oregon|Multnomah]] 1854, [[Wasco County, Oregon|Wasco]] 1854
|-
|-
| [[Clark County, Washington Genealogy|Clark]]  
| [[Clark County, Washington|Clark]]  
| 1843 Jul 05  
| 1843 Jul 05  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#CLARK Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#CLARK Details]
| [[Oregon Territory]]  
| [[Oregon Country|Oregon Country]]  
| now in [[Washington, United States Genealogy|Washington]] State
| now in [[Washington|Washington]] State
|-
|-
| [[Clatsop County, Oregon Genealogy|Clatsop]]  
| [[Clatsop County, Oregon|Clatsop]]  
| 1844 Jun 22  
| 1844 Jun 22  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#CLATSOP Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#CLATSOP Details]
| [[Twality County, Oregon Genealogy|Twality]]  
| [[Twality County, Oregon|Twality]]  
| [[Tillamook County, Oregon Genealogy|Tillamook]] 1853
| [[Tillamook County, Oregon|Tillamook]] 1853
|-
|-
| [[Columbia County, Oregon Genealogy|Columbia]]  
| [[Columbia County, Oregon|Columbia]]  
| 1854 Jan 16  
| 1854 Jan 16  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#COLUMBIA Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#COLUMBIA Details]
| [[Washington County, Oregon Genealogy|Washington]]  
| [[Washington County, Oregon|Washington]]  
| none
| none
|-
|-
| [[Coos County, Oregon Genealogy|Coos]]  
| [[Coos County, Oregon|Coos]]  
| 1853 Dec 22  
| 1853 Dec 22  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#COOS Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#COOS Details]
| [[Umpqua County, Oregon Genealogy|Umpqua]], [[Jackson County, Oregon Genealogy|Jackson]]  
| [[Umpqua County, Oregon|Umpqua]], [[Jackson County, Oregon|Jackson]]  
| [[Curry County, Oregon Genealogy|Curry]] 1855
| [[Curry County, Oregon|Curry]] 1855
|-
|-
| [[Crook County, Oregon Genealogy|Crook]]  
| [[Crook County, Oregon|Crook]]  
| 1882 Oct 24  
| 1882 Oct 24  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#CROOK Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#CROOK Details]
| [[Wasco County, Oregon Genealogy|Wasco]]  
| [[Wasco County, Oregon|Wasco]]  
| [[Deschutes County, Oregon Genealogy|Deschutes]] 1916, [[Jefferson County, Oregon Genealogy|Jefferson]] 1914, [[Wheeler County, Oregon Genealogy|Wheeler]] 1899
| [[Deschutes County, Oregon|Deschutes]] 1916, [[Trivia Tidbits, Jefferson County, Oregon|Jefferson]] 1914, [[Wheeler County, Oregon|Wheeler]] 1899
|-
|-
| [[Curry County, Oregon Genealogy|Curry]]  
| [[Curry County, Oregon|Curry]]  
| 1855 Dec 18  
| 1855 dec 18  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#CURRY Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#CURRY Details]
| [[Coos County, Oregon Genealogy|Coos]]  
| [[Coos County, Oregon|Coos]]  
| none
| none
|-
|-
| [[Deschutes County, Oregon Genealogy|Deschutes]]  
| [[Deschutes County, Oregon|Deschutes]]  
| 1916 Dec 13  
| 1916 Dec 13  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#DESCHUTES Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#DESCHUTES Details]
| [[Crook County, Oregon Genealogy|Crook]]  
| [[Crook County, Oregon|Crook]]  
| none
| none
|-
|-
| [[Douglas County, Oregon Genealogy|Douglas]]  
| [[Douglas County, Oregon|Douglas]]  
| 1852 Jan 07  
| 1852 Jan 07  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#DOUGLAS Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#DOUGLAS Details]
| [[Umpqua County, Oregon Genealogy|Umpqua]]  
| [[Umpqua County, Oregon|Umpqua]]  
| [[Wasco County, Oregon Genealogy|Wasco]] 1854
| [[Wasco County, Oregon|Wasco]] 1854
|-
|-
| [[Gilliam County, Oregon Genealogy|Gilliam]]  
| [[Gilliam County, Oregon|Gilliam]]  
| 1885 Feb 25  
| 1885 Feb 25  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#GILLIAM Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#GILLIAM Details]
| [[Wasco County, Oregon Genealogy|Wasco]]  
| [[Wasco County, Oregon|Wasco]]  
| [[Wheeler County, Oregon Genealogy|Wheeler]] 1899
| [[Wheeler County, Oregon|Wheeler]] 1899
|-
|-
| [[Grant County, Oregon Genealogy|Grant]]  
| [[Grant County, Oregon|Grant]]  
| 1864 Oct 14  
| 1864 Oct 14  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#GRANT Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#GRANT Details]
| [[Wasco County, Oregon Genealogy|Wasco]], [[Umatilla County, Oregon Genealogy|Umatilla]]  
| [[Wasco County, Oregon|Wasco]], [[Umatilla County, Oregon|Umatilla]]  
| [[Harney County, Oregon Genealogy|Harney]] 1889, [[Wheeler County, Oregon Genealogy|Wheeler]] 1899
| [[Harney County, Oregon|Harney]] 1889, [[Wheeler County, Oregon|Wheeler]] 1899
|-
|-
| [[Harney County, Oregon Genealogy|Harney]]  
| [[Harney County, Oregon|Harney]]  
| 1889 Feb 23  
| 889  Feb 23  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#HARNEY Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#HARNEY Details]
| [[Grant County, Oregon Genealogy|Grant]]  
| [[Grant County, Oregon|Grant]]  
| none
| none
|-
|-
| [[Hood River County, Oregon Genealogy|Hood River]]  
| [[Hood River County, Oregon|Hood River]]  
| 1908 Jun 23  
| 1908 Jun 23  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#HOOD%20RIVER Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#HOOD%20RIVER Details]
| [[Wasco County, Oregon Genealogy|Wasco]]  
| [[Wasco County, Oregon|Wasco]]  
| none
| none
|-
|-
| [[Jackson County, Oregon Genealogy|Jackson]]  
| [[Jackson County, Oregon|Jackson]]  
| 1852 Jan 12  
| 1852 Jan 12  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#JACKSON Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#JACKSON Details]
| [[Umpqua County, Oregon Genealogy|Umpqua]]  
| [[Umpqua County, Oregon|Umpqua]]  
| [[Coos County, Oregon Genealogy|Coos]] 1853, [[Josephine County, Oregon Genealogy|Josephine]] 1856, [[Lake County, Oregon Genealogy|Lake]] 1874, [[Wasco County, Oregon Genealogy|Wasco]] 1854
| [[Coos County, Oregon|Coos]] 1853, [[Josephine County, Oregon|Josephine]] 1856, [[Lake County, Oregon|Lake]] 1874, [[Wasco County, Oregon|Wasco]] 1854
|-
|-
| [[Jefferson County, Oregon Genealogy|Jefferson]]  
| [[Jefferson County, Oregon|Jefferson]]  
| 1914 Dec 12  
| 1914 Dec 12  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#JEFFERSON Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#JEFFERSON Details]
| [[Crook County, Oregon Genealogy|Crook]]  
| [[Crook County, Oregon|Crook]]  
| none
| none
|-
|-
| [[Josephine County, Oregon Genealogy|Josephine]]  
| [[Josephine County, Oregon|Josephine]]  
| 1856 Jan 22  
| 1856 Jan 22  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#JOSEPHINE Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#JOSEPHINE Details]
| [[Jackson County, Oregon Genealogy|Jackson]]  
| [[Jackson County, Oregon|Jackson]]  
| none
| none
|-
|-
| [[Klamath County, Oregon Genealogy|Klamath]]  
| [[Klamath County, Oregon|Klamath]]  
| 1882 Oct 17  
| 1882 Oct 17  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#KLAMATH Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#KLAMATH Details]
| [[Lake County, Oregon Genealogy|Lake]]  
| [[Lake County, Oregon|Lake]]  
| none
| none
|-
|-
| [[Lake County, Oregon Genealogy|Lake]]  
| [[Lake County, Oregon|Lake]]  
| 1874 Oct 24  
| 1874 Oct 24  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#LAKE Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#LAKE Details]
| [[Jackson County, Oregon Genealogy|Jackson]], [[Wasco County, Oregon Genealogy|Wasco]]  
| [[Jackson County, Oregon|Jackson]], [[Wasco County, Oregon|Wasco]]  
| [[Klamath County, Oregon Genealogy|Klamath]] 1882
| [[Klamath County, Oregon|Klamath]] 1882
|-
|-
| [[Lane County, Oregon Genealogy|Lane]]  
| [[Lane County, Oregon|Lane]]  
| 1851 Jan 28  
| 1851 Jan 28  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#LANE Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#LANE Details]
| [[Linn County, Oregon Genealogy|Linn]], [[Umpqua County, Oregon Genealogy|Umpqua]]  
| [[Linn County, Oregon|Linn]], [[Umpqua County, Oregon|Umpqua]]  
| [[Wasco County, Oregon Genealogy|Wasco]] 1854
| [[Wasco County, Oregon|Wasco]] 1854
|-
|-
| [[Lewis County, Washington Genealogy|Lewis]]  
| [[Lewis County, Washington|Lewis]]  
| 1845 Dec 09  
| 1845 Dec 09  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#LEWIS Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#LEWIS Details]
| [[Oregon Territory]]  
| [[Oregon Country|Oregon Country]]  
| now in [[Washington, United States Genealogy|Washington]] State
| now in [[Washington|Washington]] State
|-
|-
| [[Lincoln County, Oregon Genealogy|Lincoln]]  
| [[Lincoln County, Oregon|Lincoln]]  
| 1893 Feb 20  
| 1893 Feb 20  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#LINCOLN Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#LINCOLN Details]
| [[Benton County, Oregon Genealogy|Benton]], [[Polk County, Oregon Genealogy|Polk]]  
| [[Benton County, Oregon|Benton]], [[Polk County, Oregon|Polk]]  
| none
| none
|-
|-
| [[Linn County, Oregon Genealogy|Linn]]  
| [[Linn County, Oregon|Linn]]  
| 1847 Dec 28  
| 1847 Dec 28  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#LINN Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#LINN Details]
| [[Champoeg County, Oregon Genealogy|Champoeg]]  
| [[Champoeg County, Oregon|Champoeg]]  
| [[Lane County, Oregon Genealogy|Lane]] 1851, [[Umpqua County, Oregon Genealogy|Umpqua]] 1851, [[Wasco County, Oregon Genealogy|Wasco]] 1854
| [[Lane County, Oregon|Lane]] 1851, [[Umpqua County, Oregon|Umpqua]] 1851, [[Wasco County, Oregon|Wasco]] 1854
|-
|-
| [[Malheur County, Oregon Genealogy|Malheur]]  
| [[Malheur County, Oregon|Malheur]]  
| 1887 Feb 17  
| 1887 Feb 17  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#MALHEUR Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#MALHEUR Details]
| [[Baker County, Oregon Genealogy|Baker]]  
| [[Baker County, Oregon|Baker]]  
| none
| none
|-
|-
| [[Marion County, Oregon Genealogy|Marion]]  
| [[Marion County, Oregon|Marion]]  
| 1849 Sep 03  
| 1849 Sep 03  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#MARION Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#MARION Details]
| renamed from [[Champoeg County, Oregon Genealogy|Champoeg]]  
| renamed from [[Champoeg County, Oregon|Champoeg]]  
| [[Wasco County, Oregon Genealogy|Wasco]] 1854
| [[Wasco County, Oregon|Wasco]] 1854
|-
|-
| [[Morrow County, Ohio Genealogy|Morrow]]  
| [[Morrow County, Ohio|Morrow]]  
| 1885 Feb 16  
| 1885 Feb 16  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#MORROW Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#MORROW Details]
| [[Umatilla County, Oregon Genealogy|Umatilla]]  
| [[Umatilla County, Oregon|Umatilla]]  
| none
| none
|-
|-
| [[Multnomah County, Oregon Genealogy|Multnomah]]  
| [[Multnomah County, Oregon|Multnomah]]  
| 1854 Dec 22  
| 1854 Dec 22  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#MULTNOMAH Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#MULTNOMAH Details]
| [[Washington County, Oregon Genealogy|Washington]], [[Clackamas County, Oregon Genealogy|Clackamas]]  
| [[Washington County, Oregon|Washington]], [[Clackamas County, Oregon|Clackamas]]  
| none
| none
|-
|-
| [[Polk County, Oregon Genealogy|Polk]]  
| [[Polk County, Oregon|Polk]]  
| 1845 Dec 22  
| 1845 Dec 22  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#POLK Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#POLK Details]
| [[Yamhill County, Oregon Genealogy|Yamhill]]  
| [[Yamhill County, Oregon|Yamhill]]  
| [[Benton County, Oregon Genealogy|Benton]] 1847, [[Lincoln County, Oregon Genealogy|Lincoln]] 1893, [[Tillamook County, Oregon Genealogy|Tillamook]] 1853
| [[Benton County, Oregon|Benton]] 1847, [[Lincoln County, Oregon|Lincoln]] 1893, [[Tillamook County, Oregon|Tillamook]] 1853
|-
|-
| [[Sherman County, Oregon Genealogy|Sherman]]  
| [[Sherman County, Oregon|Sherman]]  
| 1889 Feb 25  
| 1889 Feb 25  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#SHERMAN Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#SHERMAN Details]
| [[Wasco County, Oregon Genealogy|Wasco]]  
| [[Wasco County, Oregon|Wasco]]  
| none
| none
|-
|-
| [[Tillamook County, Oregon Genealogy|Tillamook]]  
| [[Tillamook County, Oregon|Tillamook]]  
| 1853 Dec 15  
| 1853 Dec 15  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#TILLAMOOK Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#TILLAMOOK Details]
| [[Clatsop County, Oregon Genealogy|Clatsop]], [[Polk County, Oregon Genealogy|Polk]], [[Yamhill County, Oregon Genealogy|Yamhill]]  
| [[Clatsop County, Oregon|Clatsop]], [[Polk County, Oregon|Polk]], [[Yamhill County, Oregon|Yamhill]]  
| none
| none
|-
|-
| [[Twality County, Oregon Genealogy|Twality]]  
| [[Twality County, Oregon|Twality]]  
| 1843 Jul 05  
| 1843 Jul 05  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#TWALITY Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#TWALITY Details]
| [[Oregon Territory]]  
| [[Oregon Country|Oregon Country]]  
| renamed [[Washington County, Oregon Genealogy|Washington]] 1845
| renamed [[Washington County, Oregon|Washington]] 1845
|-
|-
| [[Umatilla County, Oregon Genealogy|Umatilla]]  
| [[Umatilla County, Oregon|Umatilla]]  
| 1862 Sep 27  
| 1862 Sep 27  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#UMATILLA Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#UMATILLA Details]
| [[Wasco County, Oregon Genealogy|Wasco]]  
| [[Wasco County, Oregon|Wasco]]  
| [[Grant County, Oregon Genealogy|Grant]] 1864, [[Morrow County, Oregon Genealogy|Morrow]] 1885
| [[Grant County, Oregon|Grant]] 1864, [[Morrow County, Oregon|Morrow]] 1885
|-
|-
| [[Umpqua County, Oregon Genealogy|Umpqua]]  
| [[Umpqua County, Oregon|Umpqua]]  
| 1851 Jan 28  
| 1851 Jan 28  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#UMPQUA Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#UMPQUA Details]
| [[Benton County, Oregon Genealogy|Benton]], [[Linn County, Oregon Genealogy|Linn]]  
| [[Benton County, Oregon|Benton]], [[Linn County, Oregon|Linn]]  
| [[Coos County, Oregon Genealogy|Coos]] 1853, [[Douglas County, Oregon Genealogy|Douglas]] 1852, [[Jackson County, Oregon Genealogy|Jackson]] 1852, [[Lane County, Oregon Genealogy|Lane]] 1851, dissolved into [[Douglas County, Oregon Genealogy|Douglas]] 1863
| [[Coos County, Oregon|Coos]] 1853, [[Douglas County, Oregon|Douglas]] 1852, [[Jackson County, Oregon|Jackson]] 1852, [[Lane County, Oregon|Lane]] 1851, dissolved into [[Douglas County, Oregon|Douglas]] 1863
|-
|-
| [[Union County, Oregon Genealogy|Union]]  
| [[Union County, Oregon|Union]]  
| 1864 Oct 14  
| 1864 Oct 14  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#UNION Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#UNION Details]
| [[Baker County, Oregon Genealogy|Baker]]  
| [[Baker County, Oregon|Baker]]  
| [[Wallowa County, Oregon Genealogy|Wallowa]] 1887, [[Baker County, Oregon Genealogy|Baker]] 1901
| [[Wallowa County, Oregon|Wallowa]] 1887, [[Baker County, Oregon|Baker]] 1901
|-
|-
| [[Wallowa County, Oregon Genealogy|Wallowa]]  
| [[Wallowa County, Oregon|Wallowa]]  
| 1887 Feb 11  
| 1887 Feb 11  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#WALLOWA Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#WALLOWA Details]
| [[Union County, Oregon Genealogy|Union]]  
| [[Union County, Oregon|Union]]  
| none
| none
|-
|-
| [[Wasco County, Oregon Genealogy|Wasco]]  
| [[Wasco County, Oregon|Wasco]]  
| 1854 Jan 11  
| 1854 Jan 11  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#WASCO Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#WASCO Details]
| [[Clackamas County, Oregon Genealogy|Clackamas]], [[Marion County, Oregon Genealogy|Marion]], [[Linn County, Oregon Genealogy|Linn]], [[Lane County, Oregon Genealogy|Lane]], [[Jackson County, Oregon Genealogy|Jackson]]
| [[Clackamas County, Oregon|Clackamas]], [[Marion County, Oregon|Marion]], [[Linn County, Oregon|Linn]], [[Lane County, Oregon|Lane]], [[Douglas County, Oregon|Douglas]], [[Lewis County, Washington]], [[Clark County, Washington]] (entire area east of Cascades)
| [[Baker County, Oregon Genealogy|Baker]] 1862, [[Crook County, Oregon Genealogy|Crook]] 1882, [[Gilliam County, Oregon Genealogy|Gilliam]] 1855, [[Grant County, Oregon Genealogy|Grant]] 1864, [[Hood River County, Oregon Genealogy|Hood River]] 1908, [[Lake County, Oregon Genealogy|Lake]] 1874, [[Sherman County, Oregon Genealogy|Sherman]] 1889, [[Umatilla County, Oregon Genealogy|Umatilla]] 1862
| [[Baker County, Oregon|Baker]] 1862, [[Crook County, Oregon|Crook]] 1882, [[Gilliam County, Oregon|Gilliam]] 1855, [[Grant County, Oregon|Grant]] 1864, [[Hood River County, Oregon|Hood River]] 1908, [[Lake County, Oregon|Lake]] 1874, [[Sherman County, Oregon|Sherman]] 1889, [[Umatilla County, Oregon|Umatilla]] 1862
|-
|-
| [[Washington County, Oregon Genealogy|Washington]]  
| [[Washington County, Oregon|Washington]]  
| 1845 Dec 22  
| 1845 Dec 22  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#WASHINGTON Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#WASHINGTON Details]
| renamed from [[Twality County, Oregon Genealogy|Twality]]  
| renamed from [[Twality County, Oregon|Twality]]  
| [[Columbia County, Oregon Genealogy|Columbia]] 1854, [[Multnomah County, Oregon Genealogy|Multnomah]] 1854
| [[Columbia County, Oregon|Columbia]] 1854, [[Multnomah County, Oregon|Multnomah]] 1854
|-
|-
| [[Wheeler County, Oregon Genealogy|Wheeler]]  
| [[Wheeler County, Oregon|Wheeler]]  
| 1899 Feb 17  
| 1899 Feb 17  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#WHEELER Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#WHEELER Details]
| [[Crook County, Oregon Genealogy|Crook]], [[Gilliam County, Oregon Genealogy|Gilliam]], [[Grant County, Oregon Genealogy|Grant]]  
| [[Crook County, Oregon|Crook]], [[Gilliam County, Oregon|Gilliam]], [[Grant County, Oregon|Grant]]  
| none
| none
|-
|-
| [[Yamhill County, Oregon Genealogy|Yamhill]]  
| [[Yamhill County, Oregon|Yamhill]]  
| 1843 Jul 05  
| 1843 Jul 05  
| [https://digital.newberry.org/ahcb/documents/OR_Individual_County_Chronologies.htm#YAMHILL Details]  
| [http://publications.newberry.org/ahcbp/documents/OR_Individual_County_Chronologies.htm#YAMHILL Details]
| [[Oregon Territory]]  
| [[Oregon Country|Oregon Country]]  
| [[Polk County, Oregon Genealogy|Polk]] 1845, [[Tillamook County, Oregon Genealogy|Tillamook]] 1853
| [[Polk County, Oregon|Polk]] 1845, [[Tillamook County, Oregon|Tillamook]] 1853
|}
|}
==References==
 
{{Reflist}}
[[Category:United_States]] [[Category:United_States_County_Creations]] [[Category:Oregon]]
[[Category:United_States_County_Creations]] [[Category:Oregon, United States]]

Revision as of 08:07, 13 August 2014


Name of County Date Formed Boundary
Changes
Parent County Counties Created by Boundary Changes
Baker 1862 Sep 22 Details Wasco Malheur 1887, Union 1864
Benton 1847 Dec 23 Details Polk Lincoln 1893, Umpqua 1851
Champoeg 1843 Jul 05 Details Oregon Country Linn 1847, renamed Marion 1849
Clackamas 1843 Jul 05 Details Oregon Country Multnomah 1854, Wasco 1854
Clark 1843 Jul 05 Details Oregon Country now in Washington State
Clatsop 1844 Jun 22 Details Twality Tillamook 1853
Columbia 1854 Jan 16 Details Washington none
Coos 1853 Dec 22 Details Umpqua, Jackson Curry 1855
Crook 1882 Oct 24 Details Wasco Deschutes 1916, Jefferson 1914, Wheeler 1899
Curry 1855 dec 18 Details Coos none
Deschutes 1916 Dec 13 Details Crook none
Douglas 1852 Jan 07 Details Umpqua Wasco 1854
Gilliam 1885 Feb 25 Details Wasco Wheeler 1899
Grant 1864 Oct 14 Details Wasco, Umatilla Harney 1889, Wheeler 1899
Harney 889 Feb 23 Details Grant none
Hood River 1908 Jun 23 Details Wasco none
Jackson 1852 Jan 12 Details Umpqua Coos 1853, Josephine 1856, Lake 1874, Wasco 1854
Jefferson 1914 Dec 12 Details Crook none
Josephine 1856 Jan 22 Details Jackson none
Klamath 1882 Oct 17 Details Lake none
Lake 1874 Oct 24 Details Jackson, Wasco Klamath 1882
Lane 1851 Jan 28 Details Linn, Umpqua Wasco 1854
Lewis 1845 Dec 09 Details Oregon Country now in Washington State
Lincoln 1893 Feb 20 Details Benton, Polk none
Linn 1847 Dec 28 Details Champoeg Lane 1851, Umpqua 1851, Wasco 1854
Malheur 1887 Feb 17 Details Baker none
Marion 1849 Sep 03 Details renamed from Champoeg Wasco 1854
Morrow 1885 Feb 16 Details Umatilla none
Multnomah 1854 Dec 22 Details Washington, Clackamas none
Polk 1845 Dec 22 Details Yamhill Benton 1847, Lincoln 1893, Tillamook 1853
Sherman 1889 Feb 25 Details Wasco none
Tillamook 1853 Dec 15 Details Clatsop, Polk, Yamhill none
Twality 1843 Jul 05 Details Oregon Country renamed Washington 1845
Umatilla 1862 Sep 27 Details Wasco Grant 1864, Morrow 1885
Umpqua 1851 Jan 28 Details Benton, Linn Coos 1853, Douglas 1852, Jackson 1852, Lane 1851, dissolved into Douglas 1863
Union 1864 Oct 14 Details Baker Wallowa 1887, Baker 1901
Wallowa 1887 Feb 11 Details Union none
Wasco 1854 Jan 11 Details Clackamas, Marion, Linn, Lane, Douglas, Lewis County, Washington, Clark County, Washington (entire area east of Cascades) Baker 1862, Crook 1882, Gilliam 1855, Grant 1864, Hood River 1908, Lake 1874, Sherman 1889, Umatilla 1862
Washington 1845 Dec 22 Details renamed from Twality Columbia 1854, Multnomah 1854
Wheeler 1899 Feb 17 Details Crook, Gilliam, Grant none
Yamhill 1843 Jul 05 Details Oregon Country Polk 1845, Tillamook 1853
  1. [http://historical-county.newberry.org/website/Oregon/viewer.htm Oregon 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.