Merrimack County, with its seat of government based in Concord, provides services for citizens of 27 communities.
A directory of contacts is included on the county website.
- Registry of Deeds
- Probate Court
- Superior Court
- Sheriff's Department
- Correctional Facilities
- Retirement Nursing Home
Merrimack County was organized at Concord in 1823, and is named for the Merrimack River. It was formed by removing towns from northern Hillsborough and Rockingham Counties. In 1844 its original scope was somewhat reduced by the creation of Belknap County.
In 2000 there were 136,225 people, 51,843 households, and 35,460 families residing in
the county. The median income for a household in the county was $48,522, and the median
income for a family was $56,842. According to the U.S. Census Bureau, the county has a total area of 956 square miles, 934 square miles of land and 22 square miles water.