11931 Post Office

Find 11931 post offices and USPS mailing boxes. Post offices provide information on bulk mail services, domestic mail delivery, international shipping, change of address, mail forwarding, PO boxes, and passport services.


Aquebogue Post Office 212 Linda Avenue Riverhead NY 11901 1.4 miles from 11931 631-722-4368


Jamesport Post Office 1451 New York State Route 25 Laurel NY 11948 1.6 miles from 11931 631-722-5946

South Jamesport Post Office 70 2nd St South Jamesport NY 11970 1.8 miles from 11931 631-722-4317

Laurel Post Office 2168 Main Road Laurel NY 11948 3.3 miles from 11931 631-298-1672

Riverhead Post Office 1210 West Main Street Riverhead NY 11901 4.2 miles from 11931 631-727-1019

Mattituck Post Office 140 Love Lane Mattituck NY 11952 5.7 miles from 11931 631-298-1364

Hampton Bays Post Office 16 Ponquogue Avenue Hampton Bays NY 11946 6.1 miles from 11931 631-728-6994

East Quogue Post Office 6 Bay Avenue East Quogue NY 11942 6.6 miles from 11931 631-653-5247

Calverton Post Office 3690 Middle Country Road Calverton NY 11933 6.9 miles from 11931 631-727-0067

Quogue Post Office 6 Midland Street Quogue NY 11959 8.1 miles from 11931 631-653-6427

Westhampton Post Office 408 Mill Road Westhampton NY 11977 8.1 miles from 11931 631-288-4081

New Suffolk Post Office 375 1st Street New Suffolk NY 11956 8.3 miles from 11931 631-734-6271

Cutchogue Post Office 240 Griffing Street Cutchogue NY 11935 8.4 miles from 11931 631-734-6032

Westhampton Beach Post Office 170 Main Street Westhampton Beach NY 11978 8.7 miles from 11931 631-288-4093

Speonk Post Office 323 Montauk Highway Remsenburg-Speonk NY 11972 9.3 miles from 11931 631-325-1741

Eastport Post Office 24 Eastport-Manor Road Eastport NY 11941 9.7 miles from 11931 631-325-1798

Remsenburg Post Office 137 South Country Road Remsenburg-Speonk NY 11960 10.1 miles from 11931 631-325-5937

Manorville Post Office 525 Eastport Manor Road Manorville NY 11949 11.0 miles from 11931 631-727-0064

Peconic Post Office 2575 Peconic Lane Peconic NY 11958 11.1 miles from 11931 631-765-9348

Southampton Post Office 123 North Sea Road Southampton NY 11968 11.7 miles from 11931 631-204-9822

What Change of Address options are available?

Customers can request a temporary or permanent Change of Address either online or in person at the Post Office using PS Form 3575. The online application for Change of Address has a $1.00 identity validation fee.

Is it possible to insure mail and items sent via the USPS?

Yes. Standard mail can be insured for up to $5,000 for an additional fee. Registered mail items can be insured for up to $50,000.

What is the USPS Office of Inspector General?

The Office of Inspector General (OIG) is a division within the USPS responsible for ensuring the integrity and accountability of the postal service. It conducts investigations to safeguard the postal system and performs audits and reviews.