| | Hightstown borough | 3431620 | Mercer County 34021 | NJ | Trenton-Princeton, NJ 45940 | New York-Newark,
NY-NJ-CT-PA 408 | | https://maps.google.com/?q=Hightstownborough+NJ |
| | Hopewell borough | 3433150 | Mercer County 34021 | NJ | Trenton-Princeton, NJ 45940 | New York-Newark,
NY-NJ-CT-PA 408 | | https://maps.google.com/?q=Hopewellborough+NJ |
| | Pennington borough | 3457600 | Mercer County 34021 | NJ | Trenton-Princeton, NJ 45940 | New York-Newark,
NY-NJ-CT-PA 408 | | https://maps.google.com/?q=Penningtonborough+NJ |
| | Princeton | 3460900 | Mercer County 34021 | NJ | Trenton-Princeton, NJ 45940 | New York-Newark,
NY-NJ-CT-PA 408 | Y | https://maps.google.com/?q=Princeton+NJ |
| | Trenton city | 3474000 | Mercer County 34021 | NJ | Trenton-Princeton, NJ 45940 | New York-Newark,
NY-NJ-CT-PA 408 | Y | https://maps.google.com/?q=Trentoncity+NJ |