Median Age in St. Clair County, AL
ACS 2024 5-Year Estimates
41.2 years
Rank #1,730/3,222 · #37 in AL
46th
St. Clair 41.2 years
AL 39.3 years +4.8%
US 38.9 years +5.9%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How St. Clair County's median age of 41.2 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 St. Clair County for median age.
Nearby Rankings
Full ranking →| #1,727 | Marathon County, WI | 41.3 years |
| #1,728 | Bibb County, AL | 41.2 years |
| #1,729 | Dallas County, AL | 41.2 years |
| #1,730 | St. Clair County, AL | 41.2 years |
| #1,731 | Skagway Municipality, AK | 41.2 years |
| #1,732 | Hempstead County, AR | 41.2 years |
| #1,733 | Pike County, AR | 41.2 years |
About Median Age
St. Clair County, Alabama has a median age of 41.2 years, ranking #1,730 of 3,222 counties nationwide — 5.9% above the national value of 38.9 years. Within Alabama, it ranks #37 of 67. This places it in the 46th 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.