Kootenai County, Idaho Population: 170,534 (2021)

Per the U.S. Census Bureau, Kootenai County (Coeur d'Alene metro) had a population of 170,534 as of July 1, 2021, reflecting a 7.3% increase since 2020. It is one of Idaho's fastest-growing counties, driven by in-migration, outdoor recreation appeal, and lower cost of living compared to West Coast metros.