Washington County Post Office

Find Washington County 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.


Argyle Post Office 38 Main Street Argyle NY 12809 518-638-8821


Cambridge Post Office 51 East Main Street Cambridge NY 12816 518-677-3585

Clemons Post Office 14007 Highway 22 Clemons NY 12819 518-499-0040

Comstock Post Office 11762 Highway 22 Comstock NY 12821 518-639-5288

Cossayuna Post Office 703 County Road 49 Cossayuna NY 12823 518-692-7820

Fort Ann Post Office 86 George Street Fort Ann NY 12827 518-639-8682

Fort Edward Post Office 126 Broadway Fort Edward NY 12828 518-747-6311

Granville Post Office 41 Main Street Granville NY 12832 518-642-1190

Greenwich Post Office 39 Main Street Greenwich NY 12834 518-692-2055

Hampton Post Office 2522 County Road 18 Hampton NY 12837 518-282-9611

Hartford Post Office 46 County Road 23 Hartford NY 12838 518-632-5913

Hudson Falls Post Office 114 Main Street Hudson Falls NY 12839 518-747-2144

Huletts Landing Post Office 962 County Rte 6 Huletts Landing NY 12841 518-499-2406

Middle Falls Post Office 1079 Route 29 Greenwich NY 12834 518-692-2552

Middle Granville Post Office 5 Riverside Drive Granville NY 12832 518-642-0541

North Granville Post Office 10217 Highway 22 Granville NY 12832 518-642-1441

Putnam Station Post Office 16783 Highway 22 Putnam Station NY 12861 518-547-8357

Salem Post Office 12 West Broadway Salem NY 12865 518-854-3542

Shushan Post Office 691 County Road 64 Shushan NY 12873 518-854-3040

Whitehall Post Office 88 Broadway Whitehall NY 12887 518-499-0022

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.