Median Age in Sonoma County, CA
ACS 2024 5-Year Estimates
How Sonoma County Compares
National Distribution
Where Sonoma County falls among all 3,222 U.S. counties for median age.
■ Sonoma County: 42.9 years
Ranking Context
| Rank | County | Value |
|---|---|---|
| #1,224 | Juana Díaz Municipio, PR | 43.0 years |
| #1,225 | Colbert County, AL | 42.9 years |
| #1,226 | Napa County, CA | 42.9 years |
| #1,227 | Sonoma County, CA | 42.9 years |
| #1,228 | Cheyenne County, CO | 42.9 years |
| #1,229 | Webster County, GA | 42.9 years |
| #1,230 | Greene County, IN | 42.9 years |
Median Age in Sonoma County, California
Sonoma County, California has a median age of 42.9 years, which ranks #1,227 of 3,222 out of 3,222 counties nationwide. This is 10.3% above the national value of 38.9 years.
Within California, Sonoma County ranks #17 of 58 out of 58 counties. This places it in the 62th 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.