Jamesburg Post Office

13 E Railroad Ave, Jamesburg, NJ 08831

Contact Numbers

Phone: 732-521-0403
Fax: 732-521-1653
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 8:15am - 1:00pm, 2:00pm - 4:00pm
Tuesday 8:15am - 1:00pm, 2:00pm - 4:00pm
Wednesday 8:15am - 1:00pm, 2:00pm - 4:00pm
Thursday 8:15am - 1:00pm, 2:00pm - 4:00pm
Friday 8:15am - 1:00pm, 2:00pm - 4:00pm
Saturday 9:00am - 12:00pm
Sunday Closed

Last Collection Times

Monday 4:00pm
Tuesday 4:00pm
Wednesday 4:00pm
Thursday 4:00pm
Friday 4:00pm
Saturday 12:00pm
Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Street Parking

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

68 Main St
1.1 miles away

Monroe Township
1601 Perrineville Rd
1.2 miles away

East Brunswick
614 Cranbury Rd
2.4 miles away

436 Main St
2.6 miles away


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Is their a mail box outside of the post office so that I can drop off a package slightly thicker than a letter It will not fit in the mailbox in my neighborhood


I live right on East Railroad Ave and would like to know if there is any chance that my last two yer tax returns may be sitting at your facility or does it get directed to the Monroe Post Office? Also, how long do you keep mail that was undeliverable? I have a small mailbox and it more than likely did not fit but I should have received a notice. Please advise- Thank you, Louise

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