Median Age in Placer County, CA
ACS 2024 5-Year Estimates
42.5 years
Rank #1,338/3,222 · #18 in CA
58th
Placer 42.5 years
CA 37.9 years +12.1%
US 38.9 years +9.3%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Placer County's median age of 42.5 years compares to all 3,222 U.S. counties. Values range from 21.4 years to 86.2 years.
Distribution of Median Age Across All Counties
Ranking Context
Counties ranked closest to Placer County for median age.
Nearby Rankings
Full ranking →| #1,335 | Harrison County, WV | 42.6 years |
| #1,336 | Putnam County, WV | 42.6 years |
| #1,337 | Greene County, AL | 42.5 years |
| #1,338 | Placer County, CA | 42.5 years |
| #1,339 | Wilkinson County, GA | 42.5 years |
| #1,340 | Switzerland County, IN | 42.5 years |
| #1,341 | Barber County, KS | 42.5 years |
About Median Age
Placer County, California has a median age of 42.5 years, ranking #1,338 of 3,222 counties nationwide — 9.3% above the national value of 38.9 years. Within California, it ranks #18 of 58. This places it in the 58th percentile nationally.
The median age of the total population. 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.