Idaho Counties and Historical Facts
Idaho County records vary widely from county to county in both quality and quantity. Some have been carefully preserved while others have been much abused and neglected. Some Idaho records have simply disappeared.
For genealogists doing research in Idaho there is no effective replace for an on-site search of county courthouse records.
Idaho County Records
There are 44 counties that exist in Idaho.
Each one holds records that may include: Land, Estates, Taxes,
Vital Records, Divorces, Naturalizations, Voter Registration, Court Records. The county seat holds many county historical resources.
The county recorder’s office has land records on file. Probate records can be accessed through the probate clerk. The district court clerk, meanwhile, holds court records.
Some counties have vital records on file from before the time when it was mandatory to record such records.
Court records, including minutes and judgments, from before the counties were formed are also available, along with some land records.
The district court clerk’s office holds naturalization records, which generally start at the time when the county was founded.
See also a list of
links to county and county seat government run websites. List of Idaho Extinct Counties
counties that no longer exist because they were discontinued, renamed or merged with another county.
A lot of these counties were established and disbanded within the 19th century;
county borders have changed very little since 1900.
These are important for genealogy research purposes. Pay attention where the courthouse records went to if the county was eliminated or joined with some other county.
See the History of Idaho Counties for more details.
List of Idaho Counties with Burned Courthouses
The damage to courthouses greatly has a bearing on genealogists in every way.
Not only are these historic structures torn from our lifetimes, so are the records they housed: marriage, wills, probate, land records, and others.
Once destroyed they’re lost forever. Although they have been placed on mircofilm, computers and film burn too.
all records were damaged or lost in some counties.
County Date Formed Parent County County Seat Ada 1864 Boise County Boise Adams 1911 Washington County Council Bannock 1839 Bingham County Pocatello Bear Lake 1875 Oneida County Paris Benewah 1915 Kootenai County St. Maries Bingham 1885 Oneida County Blackfoot Blaine 1895 Alturas Hailey Boise 1863 Original county Idaho City Bonner 1907 Kootenai County Sandpoint Bonneville 1911 Bingham County Idaho Falls Boundary 1915 Bonner Bonners Ferry Butte 1917 Bingham, Blaine, and Jefferson counties Arco Camas 1917 Blaine County Fairfield Canyon 1891 Ada County Caldwell Caribou 1919 Bannock County Soda Springs Cassia 1879 Owyhee County Burley Clark 1919 Fremont County Dubois Clearwater 1911 Nez Perce County Orofino Custer 1881 Alturas and Lemhi counties Challis Elmore 1889 Alturas Mountain Home Franklin 1913 Oneida County Preston Fremont 1893 Bingham County Saint Anthony Gem 1915 Boise and Canyon counties Emmett Gooding 1913 Lincoln County Gooding Idaho 1864 Original county Grangeville Jefferson 1913 Fremont County Rigby Jerome 1919 Gooding and Lincoln counties Jerome Kootenai 1864 Nez Perce County Coeur d'Alene Latah 1864 Nez Perce County Moscow Lemhi 1869 Idaho County Salmon Lewis 1911 Nez Perce County Nezperce Lincoln 1895 Logan Shoshone Madison 1913 Fremont County Rexburg Minidoka 1913 Lincoln County Rupert Nez Perce 1861 Original county Lewiston Oneida 1864 Original County Malad City Owyhee 1863 Original county Murphy Payette 1917 Canyon County Payette Power 1913 Bingham, Blaine, and Oneida counties American Falls Shoshone 1864 Original county Wallace Teton 1915 Bingham, Fremont, and Madison counties Driggs Twin Falls 1907 Cassia County Twin Falls Valley 1917 Boise and Idaho counties Cascade Washington 1879 Ada County Weiser