Median Age in Mason County, WA
ACS 2024 5-Year Estimates
44.7 years
Rank #805/3,222 · #17 in WA
75th
Mason 44.7 years
WA 38.3 years +16.7%
US 38.9 years +14.9%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Mason County's median age of 44.7 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 Mason County for median age.
Nearby Rankings
Full ranking →| #802 | Amelia County, VA | 44.7 years |
| #803 | Brunswick County, VA | 44.7 years |
| #804 | Grays Harbor County, WA | 44.7 years |
| #805 | Mason County, WA | 44.7 years |
| #806 | Fayette County, WV | 44.7 years |
| #807 | Río Grande Municipio, PR | 44.7 years |
| #808 | Vega Baja Municipio, PR | 44.7 years |
About Median Age
Mason County, Washington has a median age of 44.7 years, ranking #805 of 3,222 counties nationwide — 14.9% above the national value of 38.9 years. Within Washington, it ranks #17 of 39. This places it in the 75th 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.