Identifiers: borough · CDP · city
| Rank | Community | Population |
|---|---|---|
| 1 | Norristown (borough), PA | 35,748 |
| 2 | King of Prussia (CDP), PA | 24,695 |
| 3 | Pottstown (borough), PA | 23,433 |
| 4 | West Chester (borough), PA | 18,671 |
| 5 | Phoenixville (borough), PA | 18,602 |
| 6 | Coatesville (city), PA | 13,350 |
| 7 | Broomall (CDP), PA | 11,718 |
| 8 | Conshohocken (borough), PA | 9,261 |
| 9 | Audubon (CDP), PA | 8,688 |
| 10 | Brookhaven (borough), PA | 8,300 |
| 11 | Villanova (CDP), PA | 8,213 |
| 12 | Village Green-Green Ridge (CDP), PA | 8,000 |
| 13 | Downingtown (borough), PA | 7,892 |
| 14 | Plymouth Meeting (CDP), PA | 7,452 |
| 15 | Wayne (CDP), PA | 7,160 |
| 16 | Lionville (CDP), PA | 6,582 |
| 17 | Paoli (CDP), PA | 6,002 |
| 18 | Kennett Square (borough), PA | 5,936 |
| 19 | Media (borough), PA | 5,901 |
| 20 | Bryn Mawr (CDP), PA | 5,879 |