Identifiers: borough · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Pottstown (borough), PA | 23,433 |
| 2 | Lansdale (borough), PA | 18,773 |
| 3 | Phoenixville (borough), PA | 18,602 |
| 4 | Harleysville (CDP), PA | 9,899 |
| 5 | Quakertown (borough), PA | 9,359 |
| 6 | Perkasie (borough), PA | 9,120 |
| 7 | Audubon (CDP), PA | 8,688 |
| 8 | Sanatoga (CDP), PA | 8,496 |
| 9 | Kulpsville (CDP), PA | 8,159 |
| 10 | Souderton (borough), PA | 7,191 |
| 11 | Blue Bell (CDP), PA | 6,506 |
| 12 | Gilbertsville (CDP), PA | 5,508 |
| 13 | Trooper (CDP), PA | 5,481 |
| 14 | Birdsboro (borough), PA | 5,106 |
| 15 | Collegeville (borough), PA | 5,043 |
| 16 | Royersford (borough), PA | 4,940 |
| 17 | Telford (borough), PA | 4,928 |
| 18 | Eagleville (CDP), PA | 4,647 |
| 19 | Sellersville (borough), PA | 4,567 |
| 20 | Boyertown (borough), PA | 4,264 |