Median Age in Kootenai County, ID
ACS 2024 5-Year Estimates
40.9 years
Rank #1,824/3,222 · #18 in ID
43th
Kootenai 40.9 years
ID 37.3 years +9.7%
US 38.9 years +5.1%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Kootenai County's median age of 40.9 years compares to all 3,222 U.S. counties. Values range from 21.4 years to 86.2 years.
Distribution of Median Age Across All Counties
Ranking Context
Counties ranked closest to Kootenai County for median age.
Nearby Rankings
Full ranking →| #1,821 | Lincoln County, CO | 40.9 years |
| #1,822 | Phillips County, CO | 40.9 years |
| #1,823 | Jefferson County, GA | 40.9 years |
| #1,824 | Kootenai County, ID | 40.9 years |
| #1,825 | Floyd County, IN | 40.9 years |
| #1,826 | Madison County, IN | 40.9 years |
| #1,827 | Reno County, KS | 40.9 years |
About Median Age
Kootenai County, Idaho has a median age of 40.9 years, ranking #1,824 of 3,222 counties nationwide — 5.1% above the national value of 38.9 years. Within Idaho, it ranks #18 of 44. This places it in the 43th percentile nationally.
The median age of the total population. Source: U.S. Census Bureau, American Community Survey 2024 5-Year Estimates. All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.