Counties in Idaho
ID · 44 counties
Find Your Idaho County
Idaho County Map
All 44 counties in Idaho. Hover to identify.
All 44 Counties
Ada County
Adams County
Bannock County
Bear Lake County
Benewah County
Bingham County
Blaine County
Boise County
Bonner County
Bonneville County
Boundary County
Butte County
Camas County
Canyon County
Caribou County
Cassia County
Clark County
Clearwater County
Custer County
Elmore County
Franklin County
Fremont County
Gem County
Gooding County
Idaho County
Jefferson County
Jerome County
Kootenai County
Latah County
Lemhi County
Lewis County
Lincoln County
Madison County
Minidoka County
Nez Perce County
Oneida County
Owyhee County
Payette County
Power County
Shoshone County
Teton County
Twin Falls County
Valley County
Washington County
About Idaho Counties
Idaho is divided into 44 counties. Each county has its own government, court system, and administrative offices. Use the ZIP code lookup above to find which county any address in Idaho belongs to.
Frequently Asked Questions
How many counties does Idaho have?
Idaho has 44 counties.
How do I find my county in Idaho?
Enter your ZIP code in the search box above to instantly find which Idaho county you're in.
What is the largest county in Idaho?
Use our county lookup tool to explore all 44 counties in Idaho and find detailed information about each one.