Pennsylvania 2020 Census Population Density By County Map
The population density of Pennsylvania from the 2020 Census was 290.61 people per square mile, based on data from the US Census Bureau.
Philadelphia County had the highest population density (11,936.88 people per square mile), followed by Delaware County (3,138.1 people per square mile), and then Montgomery County (1,773.51 people per square mile). On the other hand, the 3 counties with the lowest population density were: Cameron County (11.48 people per square mile), Sullivan County (12.98 people per square mile), and Potter County (15.16 people per square mile).
You can also see this information for other states and also for the US by state.
Hover over or click on the counties to see the population density for each county. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.
| County | Population Density |
|---|---|
| Adams | 200.22 |
| Allegheny | 1713.23 |
| Armstrong | 100.35 |
| Beaver | 386.97 |
| Bedford | 47.00 |
| Berks | 500.76 |
| Blair | 233.82 |
| Bradford | 52.26 |
| Bucks | 1069.78 |
| Butler | 245.43 |
| Cambria | 194.14 |
| Cameron | 11.48 |
| Carbon | 169.80 |
| Centre | 142.66 |
| Chester | 712.03 |
| Clarion | 61.98 |
| Clearfield | 70.34 |
| Clinton | 42.17 |
| Columbia | 133.95 |
| Crawford | 82.91 |
| Cumberland | 475.67 |
| Dauphin | 545.66 |
| Delaware | 3138.10 |
| Elk | 37.48 |
| Erie | 339.06 |
| Fayette | 162.89 |
| Forest | 16.32 |
| Franklin | 201.91 |
| Fulton | 33.27 |
| Greene | 62.43 |
| Huntingdon | 50.41 |
| Indiana | 100.61 |
| Jefferson | 68.19 |
| Juniata | 60.07 |
| Lackawanna | 470.35 |
| Lancaster | 585.84 |
| Lawrence | 240.85 |
| Lebanon | 395.92 |
| Lehigh | 1084.63 |
| Luzerne | 365.98 |
| Lycoming | 92.92 |
| McKean | 41.27 |
| Mercer | 164.53 |
| Mifflin | 112.26 |
| Monroe | 276.69 |
| Montgomery | 1773.51 |
| Montour | 139.25 |
| Northampton | 846.30 |
| Northumberland | 200.25 |
| Perry | 83.13 |
| Philadelphia | 11936.88 |
| Pike | 107.42 |
| Potter | 15.16 |
| Schuylkill | 183.73 |
| Snyder | 120.86 |
| Somerset | 68.95 |
| Sullivan | 12.98 |
| Susquehanna | 46.67 |
| Tioga | 36.20 |
| Union | 135.09 |
| Venango | 74.83 |
| Warren | 43.64 |
| Washington | 244.28 |
| Wayne | 70.48 |
| Westmoreland | 345.10 |
| Wyoming | 65.60 |
| York | 504.71 |
