Post office locations in 08879
| Post Office | Address | Phone | Hours |
| LAURENCE HARBOR | 902 STATE ROUTE 35 SOUTH AMBOY, NJ 08879 - 9997 | 732-566-7031 | Mon-Fri 09:00 AM - 04:30 PM Sat 09:00 AM - 12:00 PM Sun Closed |
| SOUTH AMBOY | 209 S BROADWAY SOUTH AMBOY, NJ 08879 - 9998 | 732-721-0937 | Mon-Fri 10:00 AM - 05:00 PM Sat 09:00 AM - 04:00 PM Sun Closed |