Merrimack County, New Hampshire
Population estimates base, April 1, 2020, (V2024) 153,805
People
Population
Population estimates, July 1, 2025, (V2025) 158,078
Population estimates, July 1, 2024, (V2024) 157,869
Population estimates base, April 1, 2020, (V2025) 153,816
Population estimates base, April 1, 2020, (V2024) 153,805
Population, percent change - April 1, 2020 (estimates base) to July 1, 2025, (V2025) 2.8%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2024, (V2024) 2.6%
Population, Census, April 1, 2020 153,808
Population, Census, April 1, 2010 146,445
Age and Sex
Persons under 5 years, percent 4.4%
Persons under 18 years, percent 17.9%
Persons 65 years and over, percent 21.1%
Female persons, percent 50.2%
Race and Hispanic Origin
White alone, percent 93.4%
Black alone, percent(a) 2.2%
American Indian and Alaska Native alone, percent(a) 0.3%
Asian alone, percent(a) 2.3%
Native Hawaiian and Other Pacific Islander alone, percent(a) Z
Two or More Races, percent 1.7%
Hispanic or Latino, percent(b) 3.0%
White alone, not Hispanic or Latino, percent 91.0%
Population Characteristics
Veterans, 2020-2024 10,295
Foreign-born persons, percent, 2020-2024 4.4%
Housing
Housing Units, July 1, 2025, (V2025) 67,654
Owner-occupied housing unit rate, 2020-2024 73.5%
Median value of owner-occupied housing units, 2020-2024 $367,600
Median selected monthly owner costs - with a mortgage, 2020-2024 $2,324
Median selected monthly owner costs - without a mortage, 2020-2024 $995
Median gross rent, 2020-2024 $1,360
Building Permits, 2025 286
Families & Living Arrangements
Households, 2020-2024 60,901
Persons per household, 2020-2024 2.46
Living in the same house 1 year ago, percent of persons age 1 year+ , 2020-2024 90.1%
Language other than English spoken at home, percent of persons age 5 years+, 2020-2024 5.3%
Computer and Internet Use
Households with a computer, percent, 2020-2024 96.1%
Households with a broadband Internet subscription, percent, 2020-2024 92.8%
Education
High school graduate or higher, percent of persons age 25 years+, 2020-2024 94.5%
Bachelor's degree or higher, percent of persons age 25 years+, 2020-2024 38.9%
Health
With a disability, under age 65 years, percent, 2020-2024 11.3%
Persons without health insurance, under age 65 years, percent 5.7%
Economy
In civilian labor force, total, percent of population age 16 years+, 2020-2024 64.3%
In civilian labor force, female, percent of population age 16 years+, 2020-2024 60.4%
Total accommodation and food services sales, 2022 ($1,000)(c) 419,774
Total health care and social assistance receipts/revenue, 2022 ($1,000)(c) 1,844,181
Total transportation and warehousing receipts/revenue, 2022 ($1,000)(c) 269,380
Total retail sales, 2022 ($1,000)(c) 3,968,182
Total retail sales per capita, 2022(c) $25,362
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2020-2024 26.6
Income & Poverty
Median households income (in 2024 dollars), 2020-2024 $97,004
Per capita income in past 12 months (in 2024 dollars), 2020-2024 $49,044
Persons in poverty, percent 7.5%
Businesses
Businesses
Total employer establishments, 2023 4,213
Total employment, 2023 62,841
Total annual payroll, 2023 ($1,000) 3,792,804
Total employment, percent change, 2022-2023 1.7%
Total nonemployer establishments, 2023 12,280
All employer firms, Reference year 2023 3,102
Male-owned employer firms, Reference year 2023 1,792
Female-owned employer firms, Reference year 2023 586
Minority-owned employer firms, Reference year 2023 S
Nonminority-owned employer firms, Reference year 2023 2,252
Veteran-owned employer firms, Reference year 2023 161
Nonveteran-owned employer firms, Reference year 2023 2,439
Geography
Geography
Population per square mile, 2020 164.9
Population per square mile, 2010 156.8
Land area in square miles, 2020 932.90
Land area in square miles, 2010 934.12
FIPS Code 33013