Muhlenberg Post Office
1080 Arlington Ave, Plainfield, NJ 07060
Retail Hours
| Sunday | Closed |
| Monday | 10:00 AM - 4:00 PM |
| Tuesday | 10:00 AM - 4:00 PM |
| Wednesday | 10:00 AM - 4:00 PM |
| Thursday | 10:00 AM - 4:00 PM |
| Friday | 10:00 AM - 4:00 PM |
| Saturday | 8:30 AM - 12:30 PM |
Contact Info
| Phone | 908-753-1480 |
| Fax | 650-577-4413 |
| TTY | 877-889-2457 |
| Toll Free | 1-800-275-8777 (1-800-Ask-USPS®) |
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