Post office locations in 08873
| Post Office | Address | Phone | Hours |
| EAST MILLSTONE | 11 MARKET ST SOMERSET, NJ 08873 - 9996 | 732-873-2043 | Mon-Fri 08:30 AM - 12:30 PM 01:30 PM - 05:00 PM Sat-Sun Closed |
| SOMERSET | 500 DEMOTT LN SOMERSET, NJ 08873 - 9998 | 732-873-8600 | Mon-Fri 10:00 AM - 05:00 PM Sat 09:00 AM - 12:30 PM Sun Closed |