Identifiers: borough · city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Norristown (borough), PA | 35,748 |
| 2 | Chester (city), PA | 32,605 |
| 3 | Drexel Hill (CDP), PA | 29,181 |
| 4 | King of Prussia (CDP), PA | 24,695 |
| 5 | West Chester (borough), PA | 18,671 |
| 6 | Phoenixville (borough), PA | 18,602 |
| 7 | Ardmore (CDP), PA | 13,566 |
| 8 | Coatesville (city), PA | 13,350 |
| 9 | Broomall (CDP), PA | 11,718 |
| 10 | Lansdowne (borough), PA | 11,107 |
| 11 | Woodlyn (CDP), PA | 9,685 |
| 12 | Conshohocken (borough), PA | 9,261 |
| 13 | Audubon (CDP), PA | 8,688 |
| 14 | Brookhaven (borough), PA | 8,300 |
| 15 | Villanova (CDP), PA | 8,213 |
| 16 | Village Green-Green Ridge (CDP), PA | 8,000 |
| 17 | Downingtown (borough), PA | 7,892 |
| 18 | Plymouth Meeting (CDP), PA | 7,452 |
| 19 | Wayne (CDP), PA | 7,160 |
| 20 | Clifton Heights (borough), PA | 6,863 |