Median Age in Allegheny County, PA
ACS 2024 5-Year Estimates
40.6 years
Rank #1,936/3,222 · #55 in PA
40th
Allegheny 40.6 years
PA 40.9 years -0.7%
US 38.9 years +4.4%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Allegheny County's median age of 40.6 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 Allegheny County for median age.
Nearby Rankings
Full ranking →| #1,933 | Pittsburg County, OK | 40.6 years |
| #1,934 | Sequoyah County, OK | 40.6 years |
| #1,935 | Washita County, OK | 40.6 years |
| #1,936 | Allegheny County, PA | 40.6 years |
| #1,937 | Snyder County, PA | 40.6 years |
| #1,938 | Anderson County, SC | 40.6 years |
| #1,939 | Smith County, TN | 40.6 years |
About Median Age
Allegheny County, Pennsylvania has a median age of 40.6 years, ranking #1,936 of 3,222 counties nationwide — 4.4% above the national value of 38.9 years. Within Pennsylvania, it ranks #55 of 67. This places it in the 40th 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.