Idaho Genealogy Trails
Genealogy Trails History Group
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Genealogy Trails History Group

Volunteers Dedicated to Free Genealogy


Our goal is to help you track your ancestors through time
by transcribing genealogical and historical data and placing it online for the free use of all researchers.


This website is available for adoption!
If you have a love for history and/or genealogy, consider joining us!

Get the details on our Volunteer Page
[A desire to transcribe data and knowledge of how to make a basic webpage is required.]

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We regret that we have no time to perform personal research for anybody.
All data is placed on our websites as we come across it, so please continue to check our county sites.
Happy Trails to you on your quest for your ancestors.

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Idaho Territory
Created: March 4, 1863
Statehood: July 3, 1890

Idaho scenery 

To the north, it shares a small portion of the Canada-United States border with the province of British Columbia.

The state's capital and largest city is Boise.

Idaho is the 14th largest state by land area, but with a population of approximately 1.8 million, it ranks as the 13th least populous and the 7th least densely populated of the 50 U.S. states, as of the 2020 census.

Between 1849 and the creation of the Idaho Territory in 1863, parts of present-day Idaho were included in the Oregon, Washington, and Dakota Territories. The new Idaho territory included present-day Idaho, Montana, and most of Wyoming. The Lewis and Clark expedition crossed Idaho in 1805 on the way to the Pacific, and in 1806, on the return trip, largely following the Clearwater River in both directions. The first non-indigenous settlement was Kullyspell House, established on the shore of Lake Pend Oreille in 1809 by David Thompson of the North West Company for fur trading.

Idaho achieved statehood in 1890, following a difficult start as a territory, including the chaotic transfer of the territorial capital from Lewiston to Boise. 

The vast majority of Idaho's population lives in the Snake River Plain, a valley running from across the entirety of southern Idaho from east to west. The valley contains the major cities of Boise, Meridian, Nampa, Caldwell, Twin Falls, Idaho Falls, and Pocatello. The plain served as an easy pass through the Rocky Mountains for westward-bound settlers on the Oregon Trail, and many settlers chose to settle the area rather than risking the treacherous route through the Blue Mountains and the Cascade Range to the west.

The western region of the plain is known as the Treasure Valley, bound between the Owyhee Mountains to the southwest and the Boise Mountains to the northeast.

The central region of the Snake River Plain is known as the Magic Valley.
[source: excerpted from wikipedia]

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STATE DATA
Most of our data is contained on our county websites.  
The data on this state site either pertains to the entire state or did not specify a county.

Biographies

Family Bibles and Records

Government Topics

History Topics

Military Records

Miscellaneous Data

News Gleanings

Statewide Data

Map of Idaho Counties

 

COUNTY SITES

County

County Seat

Organized

Ada County

Boise

1864

Adams County

Council

1911

Bannock County

Pocatello

1893

Bear Lake County

Paris

1875

Benewah County

St. Maries

1915

Bingham County

Blackfoot

1885

Blaine County

Hailey

1895

Boise County

Idaho City

1864

Bonner County

Sandpoint

1907

Bonneville County

Idaho Falls

1911

Boundary County

Bonners Ferry

1915

Butte County

Arco

1917

Camas County

Fairfield

1917

Canyon County

Caldwell

1892

Caribou County

Soda Springs

1919

Cassia County

Burley

1879

Clark County

Dubois

1919

Clearwater County

Orofino

1911

Custer County

Challis

1881

Elmore County

Mountain Home

1889

Franklin County

Preston

1913

Fremont County

Saint Anthony

1893

Gem County

Emmett

1915

Gooding County

Gooding

1913

Idaho County

Grangeville

1864

Jefferson County

Rigby

1913

Jerome County

Jerome

1919

Kootenai County

Coeur d'Alene

1864

Latah County

Moscow

1888

Lemhi County

Salmon

1869

Lewis County

Nezperce

1911

Lincoln County

Shoshone

1895

Madison County

Rexburg

1913

Minidoka County

Rupert

1913

Nez Perce County

Lewiston

1864

Oneida County

Malad City

1864

Owyhee County

Murphy

1863

Payette County

Payette

1917

Power County

American Falls

1913

Shoshone County

Wallace

1864

Teton County

Driggs

1915

Twin Falls County

Twin Falls

1907

Valley County

Cascade

1917

Washington County

Weiser

1879

Extinct counties
Alturas County created February 4, 1864, and abolished March 5, 1895.
Lah-Toh County - formed in 1864 in Northern Idaho and abolished in 1867
Logan County created February 7, 1889, and abolished March 5, 1895. 
 

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