Herkimer County Post Office

Find Herkimer 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.


Cold Brook Post Office 475 Main Street Cold Brook NY 13324 315-826-3040


Dolgeville Post Office 41 South Main Street Dolgeville NY 13329 315-429-8221

Eagle Bay Post Office 102 East Avenue Eagle Bay NY 13331 315-357-3401

Frankfort Post Office 130 East Main Street Frankfort NY 13340 315-894-4410

Herkimer Post Office 135 Park Avenue Herkimer NY 13350 315-866-1460

Ilion Post Office 48 1st Street Ilion NY 13357 315-894-5007

Jordanville Post Office 137 Jordanville Road Ilion NY 13357 315-858-2884

Little Falls Post Office 25 West Main Street Little Falls NY 13365 315-823-2440

Mohawk Post Office 25 Columbia Street Mohawk NY 13407 315-866-1720

Newport Post Office 3087 Bridge Street Newport NY 13416 315-845-8593

Old Forge Post Office 2992 New York 28 Old Forge NY 13420 315-369-3414

Poland Post Office 24 Cold Brook Street Poland NY 13431 315-826-3794

Salisbury Center Post Office 181 Highway 29A Salisbury Center NY 13454 315-429-3522

Thendara Post Office 2828 Highway 28 Thendara NY 13472 315-369-3414

Van Hornesville Post Office 2178 New York 80 Van Hornesville NY 13475 315-858-0967

West Winfield Post Office 376 West Main Street West Winfield NY 13491 315-822-5350

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.