Revised 27 December 2010
Idaho was the last state to be created from the Oregon Territory. At the time of its formation as a Territory, on 3 March 1853, it included all of Montana and nearly all of Wyoming. Montana became a territory in its own right in 1864 and Wyoming was created in 1868. The six original counties were formed between the years 1861 and 1865.
The southern portion of Idaho, which borders Utah, was the first section to be settled. A group of Mormon emigrants from northern Europe established permanent settlements in that region were the first known to do so.
In 1860, a mining boom attracted people from the East and Mid-West to the Idaho valleys. The construction of large irrigation systems and districts around the Snake River, which winds its way throughout this area, drew many western and Midwestern farm families to the area around 1910 to farm the newly irrigated lands.
Although Catholic and Protestant churches are represented in most of the Idaho communities, the predominant religion in the area are those who follow the teachings of the Church of Jesus Christ of Latter-day Saints. (aka Mormons).
|Name||Date Formed||Parent County||County Seat|
|Alturas||Original County. It was discontinued in 1895, becoming part of Lincoln and Blaine Counties.|
|Bannock||1893||Oneida, Bear Lake||Pocatello|
|Boise||1863||Original County||Idaho City|
|Butte||1917||Bingham, Blaine, Jefferson||Arco|
|Caribou||1919||Bannock, Oneida||Soda Springs|
|Elmore||1889||Alturas, Ada||Mountain Home|
|Freemont||1893||Gingham, Lemnhi||St. Anthony|
|Kootenai||1864||Nez Perce||Coeur d'Alene|
|Latah (Created and organized by U.S. Congressional enactment & said to be the only county in the United States so created.||1888||Nez Perce||Moscow|
|Lewis||1911||Nez Perce||Nez Perce|
|Nez Perce||1861||Original County||Lewiston|
|Oneida||1865||Original County||Malad City|
|Power||1913||Bingham, Blaine, Oneida||American Falls|
|Twin Falls||1907||Cassia||Twin Falls|
|For books on Idaho History, visit the THE COUNTRY STORE. Proceeds from sales of books through this link-over to Amazon.com will help to support this website.|
IDAHO HISTORY WEBLINKS
|Idaho GenWeb||Idaho State Historical Society Home Page|
|The Idaho Military Historical Society||Idaho Legal Historical Society|
|Idaho Gravestone Photos||Idaho History and Genealogy - Main State Page|
|Special Collections||Black History Museum|
|Idaho Mining Association - History||Idaho Historical Museum|
|Idaho - The States - The History Channel||Idaho Genealogy Search|
|Native Americans in Idaho||Idaho History Timeline|
|Just For Kids - Idaho.gov||Idaho Ghost Towns- Patents as a Key to the Past | Patent and Trademark ...|