Sullivan County, website

Sullivan County in New Hampshire uses area code 603. On this page, you will see the physical addresses and contact information of the most relevant government agencies in Sullivan County, including the Clerk’s Office, Sheriff’s Office, and the Health Department. 

Sheriff’s Office

14 Main Street
Newport, New Hampshire, 03773
Phone: (603) 863-4200
Fax: (603) 863-0012

Police Department

59 Main Street
Newport, New Hampshire, 03773
Phone: (603) 863-3240

County Court

55 Main Street
Newport, New Hampshire, 03773
Phone: (603) 863-1832

District Court

22 Main Street
Newport, New Hampshire, 03773
Phone: (603) 863-3450

County Clerk

1 Police Court
Claremont, New Hampshire, 03743
Phone: (855) 212-1234

Circuit Clerk

58 Opera House Square
Claremont, New Hampshire, 03743
Phone: (603) 542-7000
Fax: (603) 542-7014

Treasurer

15 Sunapee Street
Newport, New Hampshire, 03773
Phone: (603) 863-6407

Tax Assessor-Collector

14 Main Street
Newport, New Hampshire, 03773
Phone: (603) 863-1877
Fax: (603) 863-8008

Sullivan County Jail

103 County Farm Road
Claremont, New Hampshire, 03743
Phone: (603) 542-8717

Emergency Management

11 Sunapee Street
Newport, New Hampshire, 03773
Phone: (603) 863-1416
Fax: (603) 863-8016

Fire Department

11 Sunapee Street
Newport, New Hampshire, 03773
Phone: (802) 649-1133
Fax: (603) 863-8016

Health Department

5 Nursing Home Drive
Claremont, New Hampshire, 03743

Human Services Department

5 Nursing Home Drive
Unity, New Hampshire, 03743
Phone: (603) 542-9511
Fax: (603) 542-7195