Post office locations in 07940
| Post Office | Address | Phone | Hours |
| MADISON | 10 LINCOLN PL MADISON, NJ 07940 - 9998 | 973-660-9636 | Mon-Fri 9:00am - 6:00pm Sat 9:00am - 4:00pm Sun Closed |
| MADISON CARRIER ANNEX | 33 CENTRAL AVE MADISON, NJ 07940 - 9991 | 973-660-9636 |