Post Offices
Post Offices in & near South Plainfield, New Jersey. Operating hours, locations, phone/fax number, services information.
South Plainfield Post Office
Post Office in South Plainfield, New Jersey on Oak Tree Ave. Operating hours, phone number, services information, and other locations.
Address: 114 Oak Tree Ave, South Plainfield, NJ 07080
Phone: 908-756-2432
Fax: 908-756-0446
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 10:00am - 4:30pmTuesday 10:00am - 4:30pm
Wednesday 10:00am - 4:30pm
Thursday 10:00am - 4:30pm
Friday 10:00am - 4:30pm
Saturday 8:30am - 1:00pm
Sunday Closed
Lobby Hours
Monday 5:00pmTuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 1:00pm
Sunday Closed
Last Collection Times
Monday 10:30am - 3:30pmTuesday 10:30am - 3:30pm
Wednesday 10:30am - 3:30pm
Thursday 10:30am - 3:30pm
Friday 10:30am - 3:30pm
Saturday 9:00am - 12:00pm
Sunday Closed