Post Offices List in Millstone Township City, New Jersey:
| Clarksburg Post Office | 424 Stagecoach Rd, Millstone Township, NJ 08510 |
| Perrineville Post Office | 221 Millstone Rd, Millstone Township, NJ 08535 |
| Clarksburg Post Office | 424 Stagecoach Rd, Millstone Township, NJ 08510 |
| Perrineville Post Office | 221 Millstone Rd, Millstone Township, NJ 08535 |