Post Offices List in Monroe Township City, New Jersey:
| Monroe Township Post Office | 1601 Perrineville Rd, Monroe Township, NJ 08831 |
| Jamesburg Post Office | 13 E Railroad Ave, Monroe Township, NJ 08831 |
| Monroe Township Post Office | 1601 Perrineville Rd, Monroe Township, NJ 08831 |
| Jamesburg Post Office | 13 E Railroad Ave, Monroe Township, NJ 08831 |