Median Age in Alameda County, CA
ACS 2024 5-Year Estimates
How Alameda County Compares
National Distribution
Where Alameda County falls among all 3,222 U.S. counties for median age.
■ Alameda County: 39.0 years
Ranking Context
| Rank | County | Value |
|---|---|---|
| #2,374 | Autauga County, AL | 39.0 years |
| #2,375 | Coffee County, AL | 39.0 years |
| #2,376 | Bradley County, AR | 39.0 years |
| #2,377 | Alameda County, CA | 39.0 years |
| #2,378 | Owyhee County, ID | 39.0 years |
| #2,379 | Kankakee County, IL | 39.0 years |
| #2,380 | Knox County, IN | 39.0 years |
Median Age in Alameda County, California
Alameda County, California has a median age of 39.0 years, which ranks #2,377 of 3,222 out of 3,222 counties nationwide. This is 0.3% above the national value of 38.9 years.
Within California, Alameda County ranks #33 of 58 out of 58 counties. This places it in the 26th 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.