Total Population in Alameda County, CA
ACS 2024 5-Year Estimates
1,649,473
Rank #20/3,222 · #7 in CA
99th
Alameda 1,649,473
CA 39M -95.8%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Alameda County's total population of 1,649,473 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 Alameda County for total population.
Nearby Rankings
Full ranking →| #17 | Broward County, FL | 1,977,129 |
| #18 | Santa Clara County, CA | 1,902,047 |
| #19 | Wayne County, MI | 1,772,259 |
| #20 | Alameda County, CA | 1,649,473 |
| #21 | Middlesex County, MA | 1,638,365 |
| #22 | New York County, NY | 1,629,477 |
| #23 | Sacramento County, CA | 1,594,006 |
About Total Population
Alameda County, California has a total population of 1,649,473, ranking #20 of 3,222 counties nationwide — 99.5% below the national value of 330M. Within California, it ranks #7 of 58. This places it in the 99th 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.