Median Age in Polk County, IA
ACS 2024 5-Year Estimates
36.2 years
Rank #2,848/3,222 · #91 in IA
12th
Polk 36.2 years
IA 38.6 years -6.2%
US 38.9 years -6.9%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Polk County's median age of 36.2 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 Polk County for median age.
Nearby Rankings
Full ranking →| #2,845 | Butte County, CA | 36.2 years |
| #2,846 | Glenn County, CA | 36.2 years |
| #2,847 | Allen County, IN | 36.2 years |
| #2,848 | Polk County, IA | 36.2 years |
| #2,849 | St. Bernard Parish, LA | 36.2 years |
| #2,850 | Wicomico County, MD | 36.2 years |
| #2,851 | Baltimore city, MD | 36.2 years |
About Median Age
Polk County, Iowa has a median age of 36.2 years, ranking #2,848 of 3,222 counties nationwide — 6.9% below the national value of 38.9 years. Within Iowa, it ranks #91 of 99. This places it in the 12th 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.