Median Age in Sioux County, IA
ACS 2024 5-Year Estimates
33.8 years
Rank #3,040/3,222 · #97 in IA
6th
Sioux 33.8 years
IA 38.6 years -12.4%
US 38.9 years -13.1%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Sioux County's median age of 33.8 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 Sioux County for median age.
Nearby Rankings
Full ranking →| #3,037 | Stevens County, MN | 33.9 years |
| #3,038 | Hoke County, NC | 33.9 years |
| #3,039 | Jones County, SD | 33.9 years |
| #3,040 | Sioux County, IA | 33.8 years |
| #3,041 | Kaufman County, TX | 33.8 years |
| #3,042 | Sanpete County, UT | 33.8 years |
| #3,043 | Lake and Peninsula Borough, AK | 33.7 years |
About Median Age
Sioux County, Iowa has a median age of 33.8 years, ranking #3,040 of 3,222 counties nationwide — 13.1% below the national value of 38.9 years. Within Iowa, it ranks #97 of 99. This places it in the 6th 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.