Median Age in Washington County, IA
ACS 2024 5-Year Estimates
How Washington County Compares
National Distribution
Where Washington County falls among all 3,222 U.S. counties for median age.
■ Washington County: 40.7 years
Ranking Context
| Rank | County | Value |
|---|---|---|
| #1,887 | Lawrence County, IL | 40.7 years |
| #1,888 | McHenry County, IL | 40.7 years |
| #1,889 | Howard County, IN | 40.7 years |
| #1,890 | Washington County, IA | 40.7 years |
| #1,891 | Allen County, KY | 40.7 years |
| #1,892 | Larue County, KY | 40.7 years |
| #1,893 | Lincoln County, KY | 40.7 years |
Median Age in Washington County, Iowa
Washington County, Iowa has a median age of 40.7 years, which ranks #1,890 of 3,222 out of 3,222 counties nationwide. This is 4.6% above the national value of 38.9 years.
Within Iowa, Washington County ranks #68 of 99 out of 99 counties. This places it in the 41th percentile nationally.
The median age of the total population. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.
About this data
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.