| Name of County
|
Date Formed
|
Boundary Changes
|
Parent County
|
Counties Created by Boundary Changes
|
| Adams
|
1867 Feb 16
|
Details
|
Unorganized territory
|
none
|
| Antelope
|
1871 Mar 1
|
Details
|
Unorganized territory
|
none
|
| Arthur
|
1887 Mar 31
|
Details
|
Unorganized territory
|
none
|
| Banner
|
1888 Nov 6
|
Details
|
Cheyenne
|
none
|
| Blackbird
|
1855 Mar 16
|
Details
|
Burt
|
Dixon 1856
|
| Blaine
|
1888 Mar 5
|
Details
|
Unorganized territory
|
none
|
| Boone
|
1871 Mar 1
|
Details
|
Unorganized territory
|
none
|
| Box Butte
|
1886 Nov 2
|
Details
|
Dawes
|
none
|
| Boyd
|
1891 Aug 1
|
Details
|
Unorganized territory
|
none
|
| Brown
|
1883 Feb 19
|
Details
|
Unorganized territory
|
Keya Paha 1884, Rock 1888
|
| Buffalo
|
1855 Mar 16
|
Details
|
Unorganized territory
|
Hall and Merrick 1858, Sherman 1871
|
| Burt
|
1854 Nov 23
|
Details
|
Unorganized territory
|
Blackbird, Cuming, Dakota, Izard, Loup, and McNeale 1855, Thurston 1889
|
| Butler
|
1856 Jan 26
|
Details
|
Greene, Loup (extinct), York
|
none
|
| Calhoun
|
1856 Jan 26
|
Details
|
Greene, Lancaster
|
renamed Saunders 1862
|
| Cass
|
1854 Nov 23
|
Details
|
Unorganized territory
|
Greene, Lancaster, Otoe, and York 1855
|
| Cedar
|
1857 Feb 12
|
Details
|
Dixon, Pierce
|
none
|
| Chase
|
1873 Feb 27
|
Details
|
Unorganized territory
|
none
|
| Cherry
|
1883 Feb 23
|
Details
|
Sioux, unorganized territory
|
none
|
| Cheyenne
|
1867 Jun 22
|
Details
|
Unorganized territory
|
Banner, Deuel, Kimball, and Scotts Bluff 1888, Morrill 1908
|
| Clay
|
1867 Feb 16
|
Details
|
Unorganized territory
|
none
|
| Colfax
|
1869 Feb 15
|
Details
|
Platte
|
none
|
| Cuming
|
1855 Mar 16
|
Details
|
Burt
|
none
|
| Custer
|
1877 Feb 17
|
Details
|
Unorganized territory
|
none
|
| Dakota
|
1855 Mar 16
|
Details
|
Burt, unorganized territory
|
none
|
| Dawes
|
1885 Feb 19
|
Details
|
Sioux
|
Box Butte 1886
|
| Dawson
|
1860 Jan 11
|
Details
|
Unorganized territory
|
none
|
| Deuel
|
1888 Nov 6
|
Details
|
Cheyenne
|
Garden 1909
|
| Dixon
|
1856 Jan 26
|
Details
|
Blackbird (extinct), Izard, McNeale (extinct), unorganized territory
|
Cedar 1857
|
| Dodge
|
1854 Nov 23
|
Details
|
Unorganized territory
|
Platte 1856, Sarpy 1857
|
| Douglas
|
1854 Nov 23
|
Details
|
Unorganized territory
|
Sarpy 1857
|
| Dundy
|
1873 Feb 27
|
Details
|
Unorganized territory
|
none
|
| Fillmore
|
1856 Jan 26
|
Details
|
Jackson (extinct), unorganized territory
|
none
|
| Forney
|
1854 Nov 23
|
Details
|
Unorganized territory
|
Gage, Nemaha, Pawnee 1855, lost all territory to Nemaha, Otoe, Clay 1856
|
| Franklin
|
1867 Feb 16
|
Details
|
Kearney
|
none
|
| Frontier
|
1872 Jan 17
|
Details
|
Unorganized territory
|
none
|
| Furnas
|
1873 Feb 27
|
Details
|
Unorganized territory
|
none
|
| Gage
|
1855 Mar 16
|
Details
|
Forney (extinct), Richardson
|
none
|
| Garden
|
1909 Nov 02
|
Details
|
Deuel
|
none
|
| Garfield
|
1884 Oct 4
|
Details
|
Wheeler
|
none
|
| Gosper
|
1873 Aug 29
|
Details
|
Unorganized territory
|
none
|
| Grant
|
1887 Mar 31
|
Details
|
Unorganized territory
|
none
|
| Greeley
|
1871 Mar 1
|
Details
|
Unorganized territory
|
none
|
| Greene
|
1855 Mar 16
|
Details
|
Cass, Pierce (old)
|
Butler, Calhoun, and Platte 1856, renamed Seward 1862
|
| Hall
|
1858 Nov 4
|
Details
|
Buffalo, unorganized territory
|
Howard 1871
|
| Hamilton
|
1867 Feb 16
|
Details
|
Unorganized territory
|
none
|
| Harlan
|
1871 Jun 3
|
Details
|
Kearney
|
none
|
| Hayes
|
1877 Feb 19
|
Details
|
Unorganized territory
|
none
|
| Hitchcock
|
1873 Feb 27
|
Details
|
Unorganized territory
|
none
|
| Holt
|
1862 Jan 9
|
Details
|
renamed from West, unorganized territory
|
none
|
| Hooker
|
1889 Mar 29
|
Details
|
Unorganized territory
|
none
|
| Howard
|
1871 Mar 1
|
Details
|
Hall
|
none
|
| Izard
|
1855 Mar 16
|
Details
|
Burt, unorganized territory
|
renamed Stanton 1862
|
| Jefferson
|
1856 Jan 26
|
Details
|
Jones (extinct), unorganized territory
|
Thayer 1871
|
| Johnson
|
1856 Feb 10
|
Details
|
Nemaha, Pawnee
|
none
|
| Kearney
|
1860 Jan 10
|
Details
|
Unorganized territory
|
Franklin 1867, Harlan 1871, Phelps 1873
|
| Keith
|
1873 Feb 27
|
Details
|
Unorganized territory
|
Perkins 1887
|
| Keya Paha
|
1884 Dec 17
|
Details
|
Brown
|
none
|
| Kimball
|
1888 Nov 6
|
Details
|
Cheyenne
|
none
|
| Knox
|
1857 Feb 10
|
Details
|
renamed from L’Eau Qui Court 1873
|
none
|
| Lancaster
|
1855 Mar 16
|
Details
|
Cass, Pierce (old)
|
Calhoun 1856
|
| L’Eau Qui Court
|
1857 Feb 10
|
Details
|
Pierce, unorganized territory
|
renamed Knox 1873
|
| Lincoln
|
1860 Jan 7
|
Details
|
renamed from Shorter 1861
|
none
|
| Logan
|
1885 Feb 24
|
Details
|
Unorganized territory
|
none
|
| Loup
|
1883 Feb 23
|
Details
|
Unorganized territory
|
none
|
| Madison
|
1856 Jan 26
|
Details
|
McNeale (extinct), unorganized territory
|
none
|
| McPherson
|
1887 Mar 31
|
Details
|
Unorganized territory
|
none
|
| Merrick
|
1858 Nov 4
|
Details
|
Buffalo, Polk, unorganized territory
|
none
|
| Morrill
|
1908 Nov 3
|
Details
|
Cheyenne
|
none
|
| Nance
|
1879 Jun 1
|
Details
|
Pawnee Indian Reservation
|
none
|
| Nemaha
|
1855 Mar 16
|
Details
|
Forney (extinct), Richardson
|
Johnson 1857
|
| Nuckolls
|
1860 Jan 13
|
Details
|
Unorganized territory
|
none
|
| Otoe
|
1855 Mar 16
|
Details
|
Cass, Pierce (old)
|
none
|
| Pawnee
|
1855 Mar 16
|
Details
|
Forney (extinct), Richardson
|
Johnson 1857
|
| Perkins
|
1887 Nov 8
|
Details
|
Keith
|
none
|
| Phelps
|
1873 Feb 11
|
Details
|
Kearney
|
none
|
| Pierce
|
1856 Jan 26
|
Details
|
McNeale (extinct), unorganized territory
|
Cedar, L’Eau Qui Court 1857
|
| Platte
|
1856 Jan 26
|
Details
|
Dodge, Loup (extinct)
|
Colfax 1869
|
| Polk
|
1856 Jan 26
|
Details
|
York, unorganized territory
|
Merrick 1858
|
| Red Willow
|
1873 Feb 27
|
Details
|
Unorganized territory
|
none
|
| Richardson
|
1854 Nov 23
|
Details
|
Unorganized territory
|
Gage, Nemaha, and Pawnee 1855
|
| Rock
|
1888 Nov 6
|
Details
|
Brown
|
none
|
| Saline
|
1855 Mar 16
|
Details
|
Jones (extinct)
|
none
|
| Sarpy
|
1857 Feb 7
|
Details
|
Dodge, Douglas
|
none
|
| Saunders
|
1856 Jan 26
|
Details
|
renamed from Calhoun 1862
|
none
|
| Scotts Bluff
|
1888 Nov 6
|
Details
|
Cheyenne
|
none
|
| Seward
|
1855 Mar 16
|
Details
|
renamed from Greene 1862
|
none
|
| Sheridan
|
1885 Feb 25
|
Details
|
Sioux
|
none
|
| Sherman
|
1871 Mar 1
|
Details
|
Buffalo, unorganized territory
|
none
|
| Shorter
|
1860 Jan 7
|
Details
|
Unorganized territory
|
renamed Lincoln 1861
|
| Sioux
|
1877 Feb 19
|
Details
|
Unorganized territory
|
Cherry 1883, Dawes and Sheridan 1885
|
| Stanton
|
1855 Mar 16
|
Details
|
renamed from Izard 1862
|
none
|
| Thayer
|
1871 May 9
|
Details
|
Jefferson
|
none
|
| Thomas
|
1887 Mar 31
|
Details
|
Unorganized territory
|
none
|
| Thurston
|
1889 Mar 28
|
Details
|
Burt, Wayne
|
none
|
| Valley
|
1871 Mar 1
|
Details
|
Unorganized territory
|
none
|
| Washington
|
1854 Nov 23
|
Details
|
Unorganized territory
|
none
|
| Wayne
|
1871 Mar 4
|
Details
|
Unorganized territory
|
Thurston 1889
|
| Webster
|
1867 Feb 16
|
Details
|
Unorganized territory
|
none
|
| West
|
1860 Jan 13
|
Details
|
Unorganized territory
|
Holt 1862
|
| Wheeler
|
1877 Feb 17
|
Details
|
Unorganized territory
|
Garfield 1884
|
| York
|
1855 Mar 16
|
Details
|
Cass, Jones (extinct), Pierce (old)
|
Polk, Butler, and Greene 1856
|