state record · population
Population of Pennsylvania
Pennsylvania had an estimated population of 13,078,751 on July 1, 2024, according to the Census Bureau's Population Estimates Program.
What stands out
Pennsylvania had an estimated population of 13,078,751 on July 1, 2024, according to the Census Bureau's Population Estimates Program. Since July 2020 that is +0.6 % (82,608 people); since 2010 it is +2.9 %. Migration is the larger driver since 2020: net migration +152,823 against a natural change (births minus deaths) of -70,144. Among the 51 states in the United States, it ranks 5 by population. Values for 2010–2019 and 2020–2024 come from two estimate vintages benchmarked to different censuses; the 2019→2020 step is partly a rebasing.
Population and components of change
July 1 estimates; components per estimate year (July–June).
Largest counties in Pennsylvania
By latest estimate, with change since July 2020. Each links to the county's own population record.
| County | Population | Since 2020 |
|---|---|---|
| Philadelphia County | 1,573,916 | -1.7 % |
| Allegheny County | 1,231,814 | -1.4 % |
| Montgomery County | 879,190 | +2.6 % |
| Bucks County | 650,131 | +0.6 % |
| Delaware County | 584,882 | +1.4 % |
| Lancaster County | 563,293 | +1.9 % |
| Chester County | 560,745 | +4.8 % |
| York County | 471,240 | +3.2 % |
| Berks County | 439,117 | +2.4 % |
| Lehigh County | 385,655 | +3.0 % |
| Westmoreland County | 350,935 | -1.0 % |
| Luzerne County | 331,379 | +1.9 % |
| Northampton County | 322,989 | +3.2 % |
| Dauphin County | 293,029 | +2.2 % |
| Cumberland County | 275,516 | +5.9 % |
| Erie County | 267,750 | -1.1 % |
| Lackawanna County | 216,859 | +0.6 % |
| Washington County | 210,434 | +0.5 % |
| Butler County | 199,341 | +2.7 % |
| Monroe County | 166,523 | -1.1 % |
| Beaver County | 165,540 | -1.4 % |
| Centre County | 159,805 | +1.2 % |
| Franklin County | 159,285 | +2.1 % |
| Lebanon County | 145,319 | +1.4 % |
| Schuylkill County | 144,523 | +1.1 % |
Largest cities and towns in Pennsylvania
Incorporated places, latest estimate. The Census Bureau publishes totals only for places, no components.
| Place | Population | Since 2020 |
|---|---|---|
| Philadelphia city | 1,573,916 | -1.7 % |
| Pittsburgh city | 307,668 | +1.6 % |
| Allentown city | 127,138 | +1.1 % |
| Reading city | 96,000 | +1.1 % |
| Erie city | 92,940 | -2.0 % |
| Bethlehem city | 79,453 | +5.0 % |
| Scranton city | 75,905 | -0.4 % |
| Lancaster city | 58,441 | +0.9 % |
| Harrisburg city | 50,649 | +1.1 % |
| York city | 45,241 | +1.0 % |
| Wilkes-Barre city | 44,661 | +0.9 % |
| Altoona city | 42,719 | -2.6 % |
| State College borough | 41,228 | +1.3 % |
| Norristown borough | 36,075 | +1.0 % |
| Chester city | 34,052 | +4.2 % |
| Bethel Park municipality | 32,376 | -3.4 % |
| Easton city | 30,432 | +8.4 % |
| Hazleton city | 30,354 | +1.5 % |
| Monroeville municipality | 27,966 | -2.4 % |
| Williamsport city | 27,628 | -0.4 % |
| Lebanon city | 26,456 | -1.2 % |
| Plum borough | 26,420 | -2.6 % |
| Pottstown borough | 23,553 | +0.5 % |
| Chambersburg borough | 23,041 | +5.3 % |
| West Chester borough | 22,758 | +21.9 % |
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