Median Age in St. Johns County, FL
ACS 2024 5-Year Estimates
44.2 years
Rank #883/3,222 · #30 in FL
73th
St. Johns 44.2 years
FL 42.6 years +3.8%
US 38.9 years +13.6%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How St. Johns County's median age of 44.2 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. Johns County for median age.
Nearby Rankings
Full ranking →| #880 | Hall County, TX | 44.3 years |
| #881 | Lamar County, AL | 44.2 years |
| #882 | Monroe County, AL | 44.2 years |
| #883 | St. Johns County, FL | 44.2 years |
| #884 | Gem County, ID | 44.2 years |
| #885 | Macoupin County, IL | 44.2 years |
| #886 | Washington County, IL | 44.2 years |
About Median Age
St. Johns County, Florida has a median age of 44.2 years, ranking #883 of 3,222 counties nationwide — 13.6% above the national value of 38.9 years. Within Florida, it ranks #30 of 67. This places it in the 73th 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.