Merrimack County, website

Merrimack 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 Merrimack County, including the Clerk’s Office, Sheriff’s Office, and the Health Department. 

Sheriff’s Office

333 Daniel Webster Highway
Boscawen, NH 03303
Phone: (603) 796-6600
Fax: (603) 796-6617

Police Department

116 North Main Street
Boscawen, NH 03303
Phone: (603) 753-9124

County Court

163 North Main Street
Concord, NH 03301
Phone: (603) 225-5501

District Court

32 Clinton Street
Concord, NH 03301
Phone: (603) 271-6400

County Clerk

32 Clinton Street
Concord, NH 03301
Phone: (855) 212-1234

Treasurer

116 North Main Street
Boscawen, NH 03303
Phone: (603) 753-9188
Fax: (603) 753-9184

Tax Assessor-Collector

116 North Main Street
Boscawen, NH 03303
Phone: (603) 753-9188
Fax: (603) 753-9184

Merrimack County Jail

326 Daniel Webster Highway
Boscawen, NH 03303
Phone: (603) 796-3600

Emergency Management

222 Sheep Davis Road
Concord, NH 03301
Phone: (603) 271-4568

Fire Department

15 High Street
Boscawen, NH 03303
Phone: (603) 796-2414

Health Department

29 Hazen Drive, # C
Concord, NH 03301
Phone: (603) 271-4661
Fax: (603) 271-4827

Human Services Department

333 Daniel Webster Highway, Suite #2
Boscawen, NH 03303
Phone: (603) 796-6800

Department of Education

101 Pleasant Street
Concord, NH 03301
Phone: (603) 271-2407
Fax: (603) 271-1953