# Counties in Pennsylvania by median age, 2024

All 67 values come from U.S. Census Bureau for 2024, so the places are comparable.

- Indicator id: `median_age`
- Unit: years
- Definition: Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.
- Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population (https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01002.dat)
- Retrieved: 2026-10-08
- Citation: U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01002.dat. Retrieved 2026-10-08.
- Web page: https://invokely.ai/rankings/median-age/pennsylvania-counties
- CSV: https://invokely.ai/download/rankings/median-age/pennsylvania-counties.csv

| Rank | Place | years |
|---:|---|---:|
| 1 | Sullivan County | 55.9 |
| 2 | Cameron County | 53 |
| 3 | Pike County | 49.4 |
| 4 | Wayne County | 49.2 |
| 5 | Forest County | 48.7 |
| 6 | Susquehanna County | 48.6 |
| 7 | Elk County | 48.4 |
| 7 | Potter County | 48.4 |
| 9 | Venango County | 47.6 |
| 10 | Bedford County | 47.5 |
| 11 | Armstrong County | 47.2 |
| 11 | Westmoreland County | 47.2 |
| 13 | Warren County | 47.1 |
| 14 | Somerset County | 46.9 |
| 15 | Carbon County | 46.3 |
| 16 | Fulton County | 46.1 |
| 17 | Cambria County | 45.6 |
| 18 | Clearfield County | 45.4 |
| 18 | Fayette County | 45.4 |
| 20 | Mercer County | 45.1 |
| 20 | Tioga County | 45.1 |
| 20 | Wyoming County | 45.1 |
| 23 | Lawrence County | 44.9 |
| 24 | Beaver County | 44.7 |
| 25 | Northumberland County | 44.5 |
| 26 | Bucks County | 44.2 |
| 26 | Washington County | 44.2 |
| 28 | Monroe County | 44.1 |
| 29 | Crawford County | 44 |
| 29 | Huntingdon County | 44 |
| 29 | Jefferson County | 44 |
| 29 | McKean County | 44 |
| 33 | Perry County | 43.8 |
| 34 | Adams County | 43.7 |
| 34 | Schuylkill County | 43.7 |
| 36 | Bradford County | 43.6 |
| 37 | Butler County | 43.4 |
| 37 | Mifflin County | 43.4 |
| 39 | Greene County | 43.3 |
| 39 | Juniata County | 43.3 |
| 41 | Blair County | 43.1 |
| 42 | Montour County | 42.9 |
| 43 | Franklin County | 42.1 |
| 44 | Luzerne County | 42 |
| 44 | Northampton County | 42 |
| 46 | Lackawanna County | 41.9 |
| 47 | Clarion County | 41.7 |
| 48 | Lycoming County | 41.4 |
| 49 | Montgomery County | 41.2 |
| 50 | Lebanon County | 41.1 |
| 50 | York County | 41.1 |
| 52 | Columbia County | 41 |
| 52 | Union County | 41 |
| 54 | Chester County | 40.8 |
| 55 | Allegheny County | 40.6 |
| 55 | Snyder County | 40.6 |
| 57 | Cumberland County | 40.2 |
| 57 | Erie County | 40.2 |
| 59 | Indiana County | 40 |
| 60 | Berks County | 39.9 |
| 61 | Clinton County | 39.8 |
| 62 | Lehigh County | 39.6 |
| 63 | Dauphin County | 39.4 |
| 63 | Lancaster County | 39.4 |
| 65 | Delaware County | 39.1 |
| 66 | Philadelphia County | 35.3 |
| 67 | Centre County | 34.2 |