Unionville Post Office

Find Unionville New York 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.


Allendale Post Office 2 Myrtle Avenue Allendale NJ 07401 29.3 miles from Unionville 201-236-9473


Lincoln Park Post Office 9 Zeliff Place Lincoln Park NJ 07035 29.3 miles from Unionville 973-694-1627

Kenvil Post Office 708 Route 46 Roxbury NJ 07847 29.4 miles from Unionville 973-584-4463

New Windsor Post Office 436 Blooming Grove Turnpike New Windsor NY 12553 29.4 miles from Unionville 845-562-0542

Succasunna Post Office 1 Roxbury Drive Roxbury NJ 07847 29.4 miles from Unionville 973-584-2022

Mountain Lakes Post Office 13 Elm Road Mountain Lakes NJ 07046 29.4 miles from Unionville 973-334-7303

Ledgewood Post Office 1070 Route 46 Roxbury NJ 07852 29.6 miles from Unionville 973-584-9198

Greenfield Park Post Office 7021 Highway 52 Greenfield Park NY 12435 29.6 miles from Unionville 845-647-8415

Harris Post Office 798 Old Route 17 Harris NY 12742 29.7 miles from Unionville 845-794-2524

Fallsburg Post Office 5672 Highway 42 Fallsburg NY 12733 29.7 miles from Unionville 845-434-6318

Packanack Lake Post Office 40 Lake Drive West Wayne NJ 07470 29.8 miles from Unionville 973-694-2632

Spring Valley Post Office 7 North Madison Avenue Spring Valley NY 10977 29.8 miles from Unionville 845-425-6741

Mount Tabor Post Office 26 Simpson Avenue Parsippany NJ 07878 29.9 miles from Unionville 973-627-9523

Fort Montgomery Post Office 130 Firefighters Memorial Drive Fort Montgomery NY 10922 29.9 miles from Unionville 845-446-8459

Lake Hiawatha Post Office 494 North Beverwyck Road Parsippany NJ 07034 30.0 miles from Unionville 973-334-7062

Stony Point Post Office 81 Central Highway Stony Point NY 10980 30.0 miles from Unionville 845-786-0429

Ellenville Post Office 1 Liberty Street Ellenville NY 12428 30.0 miles from Unionville 845-647-9584

Cornwall On Hudson Post Office 237 Hudson Street Cornwall-on-Hudson NY 12520 30.0 miles from Unionville 845-534-9783

Garnerville Post Office 55 Ramapo Road West Haverstraw NY 10923 30.1 miles from Unionville 845-947-3454

Kauneonga Lake Post Office 3584 Highway 55 Kauneonga Lake NY 12749 30.1 miles from Unionville 845-583-8159

About Post Offices

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.