Wyandanch Post Office

1569 Straight Path, Wyandanch, NY 11798

Contact Numbers

Phone: 631-643-3913
Fax: 631-643-0411
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:15am - 5:15pm
Tuesday 6:15am - 5:15pm
Wednesday 6:15am - 5:15pm
Thursday 6:15am - 5:15pm
Friday 6:15am - 5:15pm
Saturday 6:15am - 3:00pm
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

Bulk Mail Acceptance Hours

Monday 9:00am - 4:00pm
Tuesday 9:00am - 4:00pm
Wednesday 9:00am - 4:00pm
Thursday 9:00am - 4:00pm
Friday 9:00am - 4:00pm
Saturday Closed
Sunday Closed

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

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money
  • 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:

Wheatley Heights
6 Colonial Springs Rd
0.6 mile away

Deer Park
375 Carlls Path
1.7 miles away

North Babylon
1196 Deer Park Ave
1.7 miles away

West Babylon
385 Route 109
1.7 miles away


*Comments below are not read by postal employees. Please do not post personal information.

*By clicking Submit, you agree to our Privacy Policy & Terms of Use.


I live 31 chestnut St Wyandanch 11798 Yet I don't receive my package I'd like to know what happens.


It says my package has been delivered and i still haven’t received it seen the last three days , idk if you guys delivered it to the wrong address but i need my package ...


Hello,i have a cuestión? Does anyone knows.what happen To junk or non recieve mail. I just to live in wyandach 20years ago. I would like to recover.some Lost Mail. Thankyou


This is the worst postal company ever invented. The mailman delivers mail when he feels like it and most of the time won't deliver at all. A couple of time I will see him parked in front of someone house just having a conversation for minutes. Sometimes others that are in training just won't care in place mail in your box that is of others just to get the job done. # THEYARETHEWORST#

*postallocations.com is not a part of, or affiliated with, the official United States Postal Service (USPS).