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List of Idaho counties (ID) in alphabetical order, printable, size, county seats

List of Idaho counties (ID) in alphabetical order, printable, size, county seats 


Find out the list of Idaho counties (ID) in alphabetical order, printable size, and county seats.


The state of Idaho has 44 counties that are unique in their characteristics, such as geography, history, and local government. Idaho County is the largest by land area. Kootenai County is a popular tourist destination with Idaho State University right in Bannock County.


List of Idaho counties in alphabetical order: 

Ada County, ID

Adams County, ID

Bannock County, ID

Bear Lake County, ID

Benewah County, ID

Bingham County, ID

Blaine County, ID

Boise County, ID

Bonner County, ID

Bonneville County, ID

Boundary County, ID

Butte County, ID

Camas County, ID

Canyon County, ID

Caribou County, ID

Cassia County, ID

Clark County, ID

Clearwater County, ID

Custer County, ID

Elmore County, ID

Franklin County, ID

Fremont County, ID

Gem County, ID

Gooding County, ID

Idaho County, ID

Jefferson County, ID

Jerome County, ID

Kootenai County, ID

Latah County, ID

Lemhi County, ID

Lewis County, ID

Lincoln County, ID

Madison County, ID

Minidoka County, ID

Nez Perce County, ID

Oneida County, ID

Owyhee County, ID

Payette County, ID

Power County, ID

Shoshone County, ID

Teton County, ID

Twin Falls County, ID

Valley County, ID

Washington County, ID


Printable and scannable list 

Ada County, ID

Adams County, ID

Bannock County, ID; Bear Lake County, ID; Benewah County, ID; Bingham County, ID; Blaine County, ID; Boise County, ID; Bonner County, ID; Bonneville County, ID; Boundary County, ID; Butte County, ID

Camas County, ID; Canyon County, ID; Caribou County, ID; Cassia County, ID; Clark County, ID; Clearwater County, ID; Custer County, ID

Elmore County, ID

Franklin County, ID

Fremont County, ID

Gem County, ID

Gooding County, ID

Idaho County, ID

Jefferson County, ID

Jerome County, ID

Kootenai County, ID

Latah County, ID, Lemhi County, ID, Lewis County, ID, Lincoln County, ID

Madison County, ID

Minidoka County, ID

Nez Perce County, ID

Oneida County, ID

Owyhee County, ID

Payette County, ID

Power County, ID

Shoshone County, ID

Teton County, ID

Twin Falls County, ID

Valley County, ID

Washington County, ID


List of Idaho counties and their size 

Ada County (1,055 sq mi)

Adams County (1,365 sq mi)

Bannock County (1,113 sq mi)

Bear Lake County (971 sq mi)

Benewah County (776 sq mi)

Bingham County (2,095 sq mi) 

Blaine County (2,645 sq mi)

Boise County (1,902 sq mi) 

Bonner County (1,738 sq mi)

Bonneville County (1,901 sq mi) 

Boundary County (1,277 sq mi)

Butte County (2,234 sq mi) 

Camas County (1,079 sq mi)

Canyon County (604 sq mi) 

Caribou County (1,799 sq mi)

Cassia County (2,565 sq mi)

Clark County (1,765 sq mi)

Clearwater County (2,488 sq mi)

Custer County (4,938 sq mi) 

Elmore County (3,101 sq mi)

Franklin County (668 sq mi)

Fremont County (1,896 sq mi) 

Gem County (561 sq mi) 

Gooding County (734 sq mi) 

Idaho County (8,485 sq mi) 

Jefferson County (1,106 sq mi)

Jerome County (600 sq mi) 

Kootenai County (1,316 sq mi)

Latah County (1,077 sq mi)

Lemhi County (4,569 sq mi) 

Lewis County (480 sq mi)

Lincoln County (1,206 sq mi)

Madison County (473 sq mi)

Minidoka County (759 sq mi) 

Nez Perce County (856 sq mi) 

Oneida County (1,202 sq mi)

Owyhee County (7,697 sq mi)

Payette County (408 sq mi) 

Power County (1,406 sq mi) 

Shoshone County (2,635 sq mi) 

Teton County (450 sq mi)

Twin Falls County (2,492 sq mi)

Valley County (3,733 sq mi) 

Washington County (1,474 sq mi)


List of Idaho counties and their county seats 

Ada County (Boise)

Adams County (Council) 

Bannock County (Pocatello) 

Bear Lake County (Paris) 

Benewah County (St. Maries) 

Bingham County (Blackfoot)

Blaine County (Hailey)

Boise County (Idaho City)

Bonner County (Sandpoint)

Bonneville County (Idaho Falls)

Boundary County (Bonners Ferry)

Butte County (Arco)

Camas County (Fairfield)

Canyon County (Caldwell)

Caribou County (Soda Springs)

Cassia County (Burley)

Clark County (Dubois)

Clearwater County (Orofino)

Custer County (Challis) 

Elmore County (Mountain Home)

Franklin County (Preston)

Fremont County (St. Anthony)

Gem County (Emmett) 

Gooding County (Gooding)

Idaho County (Grangeville)

Jefferson County (Rigby) 

Jerome County (Jerome) 

Kootenai County (Coeur d'Alene) 

Latah County (Moscow) 

Lemhi County (Salmon)

Lewis County (Nezperce)

Lincoln County (Shoshone) 

Madison County (Rexburg)

Minidoka County (Rupert) 

Nez Perce County (Lewiston)

Oneida County (Malad City)

Owyhee County (Murphy)

Payette County (Payette

Power County (American Falls)

Shoshone County (Wallace)

Teton County (Driggs)

Twin Falls County (Twin Falls) 

Valley County (Cascade) 

Washington County (Weiser)


Highlight the top 10 largest counties in Idaho. 

Idaho County

Location: Central

Place to visit: Nez Perce National Forest and the Salmon River.


Owyhee County 

Location: Southwest

Places to visit: Owyhee River and the Bruneau Dunes State Park


Custer County

Location: Central

Places to visit: Mackay Mine Hill and Sawtooth National Recreation Area


Lemhi County 

Location: East

Places to visit: Sacajawea Interpretive Centre and Lemhi Pass


Elmore County

Location: South West

Places to visit: Bruneau Canyon and Mountain Home Air Force Base


Valley County

Location: West-central

Places to visit: McCall Ski Resort and Payette Lake


Cassia County

Location: South

Places to visit: Oakley Historic District and City of Rocks National Reserve 


Shoshone County

Location: North

Places to visit: Coeur d'Alene River and Silver Valley


Blaine County

Location: South-central 

Places to visit: Craters of the Moon and the Sun Valley 


Bingham County

Location: South East

Places to visit: Fort Hall Reservation and Blackfoot Reservoir.

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