Median Age in Harrison County, IA
ACS 2024 5-Year Estimates
42.1 years
Rank #1,455/3,222 · #50 in IA
55th
Harrison 42.1 years
IA 38.6 years +9.1%
US 38.9 years +8.2%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Harrison County's median age of 42.1 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 Harrison County for median age.
Nearby Rankings
Full ranking →| #1,452 | Walker County, GA | 42.1 years |
| #1,453 | Dearborn County, IN | 42.1 years |
| #1,454 | Starke County, IN | 42.1 years |
| #1,455 | Harrison County, IA | 42.1 years |
| #1,456 | Humboldt County, IA | 42.1 years |
| #1,457 | Mills County, IA | 42.1 years |
| #1,458 | Kingman County, KS | 42.1 years |
About Median Age
Harrison County, Iowa has a median age of 42.1 years, ranking #1,455 of 3,222 counties nationwide — 8.2% above the national value of 38.9 years. Within Iowa, it ranks #50 of 99. This places it in the 55th 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.