Iselin Post Office - near me location, phone, and lobby, Retail, last collection open hours at today or at Saturday, Sunday

NOTICE: The Postal Service is an essential government service, and will remain open wherever possible.

250 Middlesex Turnpike, Iselin, NJ 08830

Contact Numbers

Phone: 732-283-0053
Fax: 650-357-6535
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Lobby Hours

Monday 8:30am - 5:00pm
Tuesday 8:30am - 5:00pm
Wednesday 8:30am - 5:00pm
Thursday 8:30am - 5:00pm
Friday 8:30am - 5:00pm
Saturday 8:30am - 1:00pm
Sunday Closed

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 3:00pm
Sunday Closed

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

  • Business Line
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • Lot 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:

Iselin Retail
240 Middlesex Turnpike
0.0 mile away

574 Inman Ave
1.1 miles away

Menlo Park
100 Menlo Park Ste 101
1.2 miles away

450 New Brunswick Ave
1.8 miles away


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Yesterday, I got one police ticket in my mail box. Actually it show date on letter is 12-November and I received on 30-November. It was parking ticket of $54 & due to late sending by USPS OF ISELIN,NJ, I have to pay 10$ extra. Please send mail timely.


I went to post office on 6/14/2021 @ 5:52 there hours of operation are from 9am to 6pm it says on the main door. Door were closed we I get there waited for few mins also knock the door and the window to get the attention of the employees who were on the register. Both employees were busy balancing their cash draws didn’t acknowledged me. I was there 8 mins before closing. This is very frustrating I went right after my work. Just went to pick up passport applications for my Minors. This is very unfair.


This Post Office is filthy !!! When I asked a postal employee if they complain about the condition of their office, they replied - "who do we complain to? " Then I asked "well, who do I complain to and they replied to go see someone in the office next door". The parking lot is always full of garbage flying around, the area where I pick up my mail from the post office box is not only filthy but also smells like urine at times and there is a covering of dirt on the floor. Not to mention the paper on the floor and usually over flowing in the garbage. Does anyone else care about this?


Several times over the last few weeks I have not been getting my mail. At one point it was 3 days in one week! Everytime I call the post office to complain nothing is done about it they just tell me I have no mail. I have 5 people living in my home there is always mail! I had a letter to be mailed hanging out of my mail box today and it was never even picked up.

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