The Civic Record
County · New Hampshire

Merrimack County

Merrimack County

Merrimack County is a county in the U.S. state of New Hampshire. As of the 2020 Census, the population was 153,808, making it the third most populous county in New Hampshire. Its county seat is Concord, the state capital. The county was organized in 1823 from parts of Hillsborough and Rockingham counties, and is named for the Merrimack River. Merrimack County comprises the Concord, NH Micropolitan Statistical Area, which in turn constitutes a portion of the Boston–Worcester–Providence, MA–RI–NH–CT Combined Statistical Area. In 2010, the center of population of New Hampshire was located in Merrimack County, in the town of Pembroke.

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155,238 population (2021) · County area: Merrimack · Official website

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Cities and towns 2

Townships 25

Reference data (Census of Governments 2022)
Census ID (PID6)
169996
FIPS state
33
FIPS county
013
FIPS place
99013
Census record name
COUNTY OF MERRIMACK
Mailing address
333 DANIEL WEBSTER HWY, BOSCAWEN 03303