Identifiers: city · town · CDP · borough
| Rank | Community | Population |
|---|---|---|
| 1 | Newark (city), NJ | 311,549 |
| 2 | Paterson (city), NJ | 159,732 |
| 3 | Clifton (city), NJ | 90,296 |
| 4 | East Orange (city), NJ | 69,612 |
| 5 | Westfield (town), NJ | 31,032 |
| 6 | Parsippany (CDP), NJ | 22,778 |
| 7 | Summit (city), NJ | 22,719 |
| 8 | Elmwood Park (borough), NJ | 21,422 |
| 9 | Morristown (town), NJ | 20,180 |
| 10 | Harrison (town), NJ | 19,450 |
| 11 | Preakness (CDP), NJ | 18,487 |
| 12 | Dover (town), NJ | 18,460 |
| 13 | Madison (borough), NJ | 16,937 |
| 14 | Short Hills (CDP), NJ | 14,422 |
| 15 | Hopatcong (borough), NJ | 14,362 |
| 16 | Roselle Park (borough), NJ | 13,967 |
| 17 | New Providence (borough), NJ | 13,650 |
| 18 | Woodland Park (borough), NJ | 13,484 |
| 19 | Upper Montclair (CDP), NJ | 13,146 |
| 20 | Oakland (borough), NJ | 12,748 |