Total Population in Sonoma County, CA
ACS 2024 5-Year Estimates
485,040
Rank #150/3,222 · #17 in CA
95th
Sonoma 485,040
CA 39M -98.8%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Sonoma County's total population of 485,040 compares to all 3,222 U.S. counties. Values range from 33 to 9,808,667.
Distribution of Total Population Across All Counties
Ranking Context
Counties ranked closest to Sonoma County for total population.
Nearby Rankings
Full ranking →| #147 | Richmond County, NY | 494,956 |
| #148 | Knox County, TN | 494,148 |
| #149 | Prince William County, VA | 488,880 |
| #150 | Sonoma County, CA | 485,040 |
| #151 | Seminole County, FL | 481,470 |
| #152 | Tulare County, CA | 478,693 |
| #153 | Onondaga County, NY | 471,129 |
About Total Population
Sonoma County, California has a total population of 485,040, ranking #150 of 3,222 counties nationwide — 99.9% below the national value of 330M. Within California, it ranks #17 of 58. This places it in the 95th percentile nationally.
Total population count from the American Community Survey. 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.