Post office locations in 08873
| Post Office | Address | Phone | Hours |
| EAST MILLSTONE | 11 MARKET ST SOMERSET, NJ 08873 - 9996 | 732-873-2043 | Mon-Fri 8:30am - 12:30pm 1:30pm - 5:00pm Sat-Sun Closed |
| SOMERSET | 500 DEMOTT LN SOMERSET, NJ 08873 - 9998 | 732-873-8600 | Mon-Fri 10:00am - 5:00pm Sat 9:00am - 12:30pm Sun Closed |