11803 Post Office

Find 11803 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.


Huntington Post Office 55 Gerard Street Huntington NY 11743 6.7 miles from 11803 631-427-3825


Old Westbury Post Office 1 Store Hill Road Old Westbury NY 11568 7.0 miles from 11803 516-626-5247

Oyster Bay Post Office 1 Shore Avenue Oyster Bay NY 11771 7.1 miles from 11803 516-922-8249

Park Blvd Post Office 1007 Park Boulevard Massapequa Park NY 11762 7.2 miles from 11803 516-799-6802

North Bellmore Post Office 2465 Jerusalem Avenue North Bellmore NY 11710 7.2 miles from 11803 516-785-0676

Rxr Plaza Post Office 100 RXR Plaza Uniondale NY 11553 7.2 miles from 11803 516-794-2053

Massapequa Post Office 80 Killians Road Massapequa NY 11758 7.4 miles from 11803 516-798-2576

West Babylon Post Office 385 Route 109 West Babylon NY 11704 7.6 miles from 11803 631-893-0560

Carle Place Post Office 309 Westbury Avenue Carle Place NY 11514 7.6 miles from 11803 516-333-3147

Western Nassau Post Office 830 Stewart Avenue Garden City NY 11599 7.6 miles from 11803 516-228-7502

Amityville Post Office 77 Ireland Place Amityville NY 11701 7.7 miles from 11803 631-264-3532

Wantagh Post Office 3300 Park Avenue Wantagh NY 11793 7.7 miles from 11803 516-785-3425

Roosevelt Field Post Office 630 Old Country Road Garden City NY 11530 7.9 miles from 11803 516-746-1394

Copiague Post Office 695 Marconi Boulevard Copiague NY 11726 7.9 miles from 11803 631-842-9084

Halesite Post Office 16 New York Avenue Huntington NY 11743 8.0 miles from 11803 631-423-5880

Massapequa Park Post Office 4910 Merrick Road Massapequa Park NY 11762 8.0 miles from 11803 516-798-1268

Uniondale Post Office 1000 Front Street Uniondale NY 11553 8.0 miles from 11803 516-481-8245

Deer Park Post Office 375 Carlls Path Deer Park NY 11729 8.1 miles from 11803 631-667-6490

Seaford Post Office 3575 Merrick Road Seaford NY 11783 8.1 miles from 11803 516-785-3851

Mill Neck Post Office 32 Frost Mill Road Mill Neck NY 11765 8.2 miles from 11803 516-922-8247

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.