Kootenai County, Idaho
Kootenai County Courthouse
Location within the U.S. state of Idaho
Idaho's location within the U.S.
|Founded||December 22, 1864|
|Named for||Kootenai tribe|
|Largest city||Coeur d'Alene|
|• Total||1,316 sq mi (3,410 km2)|
|• Land||1,244 sq mi (3,220 km2)|
|• Water||71 sq mi (180 km2) 5.4%%|
| • Estimate |
|• Density||127/sq mi (49/km2)|
|Time zone||UTC−8 (Pacific)|
|• Summer (DST)||UTC−7 (PDT)|
Kootenai County (// KOOT-nee) is a county in the U.S. state of Idaho. As of the 2010 census, 138,494 people lived there, making it the third-most populous county in Idaho. The county seat and largest city is Coeur d'Alene. The county was founded in 1864 and named after the Kootenai tribe.