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Population Review

What is the population of Merrimack County, NH?

Merrimack County in New Hampshire has a population of 155,018, per Census ACS 5-Year estimates. The median household income is $93,944 and the median age is 42.6.

Context

Counties are the primary administrative subdivisions of states and a stable unit for tracking population. Merrimack County's population reflects everyone within county lines, including residents of incorporated cities and unincorporated areas.

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Merrimack County in New Hampshire has a population of 155,018, per Census ACS 5-Year estimates. The median household income is $93,944 and the median age is 42.6.