Median Age in Jefferson County, IA
ACS 2024 5-Year Estimates
How Jefferson County Compares
National Distribution
Where Jefferson County falls among all 3,222 U.S. counties for median age.
■ Jefferson County: 43.7 years
Ranking Context
| Rank | County | Value |
|---|---|---|
| #1,007 | Randolph County, IL | 43.7 years |
| #1,008 | Pike County, IN | 43.7 years |
| #1,009 | Butler County, IA | 43.7 years |
| #1,010 | Jefferson County, IA | 43.7 years |
| #1,011 | Monona County, IA | 43.7 years |
| #1,012 | Pocahontas County, IA | 43.7 years |
| #1,013 | Clark County, KS | 43.7 years |
Median Age in Jefferson County, Iowa
Jefferson County, Iowa has a median age of 43.7 years, which ranks #1,010 of 3,222 out of 3,222 counties nationwide. This is 12.3% above the national value of 38.9 years.
Within Iowa, Jefferson County ranks #24 of 99 out of 99 counties. This places it in the 69th 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.