State of New Hampshire Property Tax Sullivan County Assessor

Where is the Sullivan County Tax Assessor's Office?

Sullivan County has ten towns and cities with their own local tax assessor's offices. Choose your locality to find the contact information of your local tax assessor.

City of Claremont Town of Charlestown Town of Goshen Town of Grantham Town of Langdon
Town of Newport Town of Plainfield Town of Springfield Town of Sunapee Town of Washington

How can I contact Sullivan County?

If you need access to property records, deeds, or other services the Sullivan County Assessor's Office can't provide, you can try contacting the Sullivan County municipal government. The Sullivan County seat can be found in the County Courthouse in Newport. You can contact Sullivan County with general inquiries using the contact info listed below.

County Courthouse
14 Main St
Newport, NH 03773-1548
Sullivan County Contact Info:
(603) 863 2560 (Phone)
(603) 863 9314 (Fax)

For more details about taxes in Sullivan County, or to compare property tax rates across New Hampshire, see the Sullivan County property tax page.