Total Population in Placer County, CA
ACS 2024 5-Year Estimates
How Placer County Compares
National Distribution
Where Placer County falls among all 3,222 U.S. counties for total population.
■ Placer County: 419,156
Ranking Context
| Rank | County | Value |
|---|---|---|
| #174 | Clackamas County, OR | 423,975 |
| #175 | Richland County, SC | 422,117 |
| #176 | Charleston County, SC | 420,264 |
| #177 | Placer County, CA | 419,156 |
| #178 | St. Charles County, MO | 414,535 |
| #179 | Lake County, FL | 412,924 |
| #180 | Mobile County, AL | 412,590 |
Total Population in Placer County, California
Placer County, California has a total population of 419,156, which ranks #177 of 3,222 out of 3,222 counties nationwide. This is 99.9% below the national value of 330M.
Within California, Placer County ranks #22 of 58 out of 58 counties. This places it in the 95th percentile nationally.
Total population count from the American Community Survey. 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.