Post Offices in Sullivan County, New Hampshire

There are 14 Post Offices in Sullivan County, New Hampshire, serving a population of 43,073 people in an area of 538 square miles. There is 1 Post Office per 3,076 people, and 1 Post Office per 38 square miles.

In New Hampshire, Sullivan County is ranked 4th of 10 counties in Post Offices per capita, and 7th of 10 counties in Post Offices per square mile.

List of Sullivan County Post Offices

Find Sullivan County, New Hampshire post offices and USPS mailing boxes.


Acworth Post Office 123 Hill Road Acworth, NH

Claremont Post Office 140 Broad Street Claremont, NH

Cornish Flat Post Office 241 Route 120 Claremont, NH

Georges Mills Post Office 1294 Route 11 Sunapee, NH

Goshen Post Office 25 Mill Village Road North Goshen, NH

Grantham Post Office 10 Willis Avenue Grantham, NH

Guild Post Office 16 Hale Street Newport, NH

Lempster Post Office 767 New Hampshire 10 Lempster, NH

Meriden Post Office 54 Main Street Plainfield, NH

Newport Post Office 15 Park Street Newport, NH

Plainfield Post Office 1132 New Hampshire 12A Plainfield, NH

Springfield Post Office 2776 Main Street Springfield, NH

Sunapee Post Office 5 Sunapee Street Sunapee, NH

Washington Post Office 173 South Main Street Washington, NH

About Sullivan County Post Offices

Sullivan County Post Offices are branch locations of the customer service postal facilities of the United States Postal Service (USPS) in Sullivan County, NH. The USPS is an independent agency of the federal government that provides mail and package delivery services to all states and territories. Sullivan County post offices are supported entirely by revenues generated by their own operations. Operational authority over the USPS lies with a Board of Governors and rate setting authority falls under the Postal Rate Commission.

You may contact the Post Office for questions about:
  • Sullivan County Post Office hours and locations
  • Mail and package delivery services
  • Sullivan County PO Box services
  • Passport applications and renewals
  • Sullivan County Post Office jobs and employment