Percent change in population from 2020 to 2050 according to 2020-2050 Population Projections.
Credit: PA State Data Center
| County | Population % Change |
|---|---|
| Adams | -12 |
| Allegheny | -1.8 |
| Armstrong | -15.6 |
| Beaver | -8.9 |
| Bedford | -8.3 |
| Berks | +7.4 |
| Blair | -6.4 |
| Bradford | -4.8 |
| Bucks | -7.5 |
| Butler | -7.5 |
| Cambria | -9.2 |
| Cameron | -9.7 |
| Carbon | -13 |
| Centre | +12.3 |
| Chester | +6.9 |
| Clarion | -4.7 |
| Clearfield | -7.3 |
| Clinton | +0.7 |
| Columbia | -15.8 |
| Crawford | -4.7 |
| Cumberland | +14.1 |
| Dauphin | +11.3 |
| Delaware | +5.5 |
| Elk | -15.4 |
| Erie | +0.3 |
| Fayette | -4.9 |
| Forest | -19.7 |
| Franklin | +0.5 |
| Fulton | -1.1 |
| Greene | -4.8 |
| Huntingdon | -2.8 |
| Indiana | +10.9 |
| Jefferson | -5.5 |
| Juniata | +15.1 |
| Lackawanna | +0.8 |
| Lancaster | +8.4 |
| Lawrence | -6.6 |
| Lebanon | +12.7 |
| Lehigh | +11.3 |
| Luzerne | +3.6 |
| Lycoming | -1.6 |
| McKean | -8.1 |
| Mercer | -5.1 |
| Mifflin | +4.6 |
| Monroe | -4.7 |
| Montgomery | +0.2 |
| Montour | -3.2 |
| Northampton | -2.1 |
| Northumberland | -8.4 |
| Perry | -4.5 |
| Philadelphia | +14.7 |
| Pike | -24.3 |
| Potter | -9.3 |
| Schuylkill | -10.5 |
| Snyder | -1.3 |
| Somerset | -11.2 |
| Sullivan | -2.7 |
| Susquehanna | -13.4 |
| Tioga | -9.8 |
| Union | +15 |
| Venango | -10.6 |
| Warren | -11.1 |
| Washington | -10 |
| Wayne | -15 |
| Westmoreland | -16 |
| Wyoming | -10.3 |
| York | +4.0 |