|
 Idaho
Links
|
County |
Date Formed |
Parent County |
County Seat |
|
Ada |
22 Dec 1864 |
Boise |
Boise |
|
Adams |
3 Mar 1911 |
Washington |
Council |
|
Alturas |
1864 (abolished in 1895) |
County records are located in Blaine CO |
Esmeralda |
|
Bannock |
6 March 1893 |
Bingham |
Pocatello |
|
Bear
Lake |
5 January 1875 |
Oneida |
Paris |
|
Benewah |
23 January 1915 |
Kootenai |
Saint Maries |
|
Bingham |
13 January 1885 |
Oneida |
Blackfoot |
|
Blaine |
5 March 1895 |
Alturas |
Hailey |
|
Boise |
4 February 1864 |
Original County |
Idaho City |
|
Bonner |
21 February 1907 |
Kootenai |
Sandpoint |
|
Bonneville |
7 February 1911 |
Bingham |
Idaho Falls |
|
Boundary |
23 January 1915 |
Bonner |
Bonners Ferry |
|
Butte |
6 February 1917 |
Bingham, Blaine, and Jefferson |
Arco |
|
Camas |
6 February 1917 |
Blaine |
Fairfield |
|
Canyon |
7 March 1891 |
Ada |
Caldwell |
|
Caribou |
11 February 1919 |
Bannock |
Soda Springs |
|
Cassia |
20 February 1879 |
Owyhee |
Burley |
|
Clark |
1 February 1919 |
Fremont |
Dubois |
|
Clearwater |
27 February 1911 |
Nez Perce |
Orofino |
|
Coeur d'Alene
Reservation |
|
North Idaho |
|
|
Custer |
8 January 1881 |
Alturas and Lemhi |
Challas |
|
Duck Valley
Reservation |
|
Southwestern Idaho and Northwestern Nevada |
|
|
Elmore |
7 February 1889 |
Alturas |
Mountain Home |
|
Fort Hall
Reservation |
|
Southeastern Idaho |
|
|
Franklin |
20 January 1913 |
Oneida |
Preston |
|
Fremont |
4 March 1893 |
Bingham |
St. Anthony |
|
Gem |
15 March 1915 |
Boise and Canyon |
Emmett |
|
Gooding |
28 January 1913 |
Lincoln |
Gooding |
|
Idaho |
4 February 1864 |
Original County |
Grangeville |
|
Jefferson |
18 February 1913 |
Fremont |
Rigby |
|
Jerome |
8 February 1919 |
Gooding & Lincoln |
Jerome |
|
Kootenai |
22 Dec 1864 |
Nez Perce |
Coeur d'Alene |
|
Kootenai Tribal Headquarters are in Boundary CO. They are the
only tribe in the U.S. without a Reservation. |
|
Latah |
14 May 1888 |
Nez Perce |
Moscow |
|
Lemhi |
9 January 1869 |
Idaho |
Salmon |
|
Lewis |
3 Mar 1911 |
Nez Perce |
Nezperce |
|
Lincoln |
18 March 1895 |
Alturas & Blaine |
Shoshone |
|
Madison |
18 February 1913 |
Fremont |
Rexburg |
|
Minidoka |
28 January 1913 |
Lincoln |
Lincoln |
|
Nez
Perce |
4 February 1864 |
Original County |
Lewiston |
|
Nez Perce
Reservation |
|
North Idaho |
|
|
Oneida |
22 January 1864 |
Original County |
Malad City |
|
Owyhee |
31 Dec 1863 |
Original County |
Murphy |
|
Payette |
28 Feb 1917 |
Canyon |
Payette |
|
Power |
30 January 1913 |
Bingham, Blaine & Oneida |
American Falls |
|
Shoshone |
4 February 1864 |
Original County |
Wallace |
|
Teton |
26 January 1915 |
Madison |
Driggs |
|
Twin Falls |
21 February 1907 |
Cassia |
Twin Falls |
|
Valley |
26 February 1917 |
Idaho & Boise |
Cascade |
|
Washington |
20 February 1879 |
Boise |
Weiser |
|
