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Merrimack County, New Hampshire

Merrimack County, New Hampshire
Merrimack County Courthouse
Map of New Hampshire highlighting Merrimack County
Location in the state of New Hampshire
Map of the United States highlighting New Hampshire
New Hampshire's location in the U.S.
Founded 1823
Named for Merrimack River
Seat Concord
Largest city Concord
 • Total 956 sq mi (2,476 km2)
 • Land 934 sq mi (2,419 km2)
 • Water 22 sq mi (57 km2), 2.3%
 • (2010) 146,445
 • Density 157/sq mi (61/km²)
Congressional districts 1st, 2nd
Time zone Eastern: UTC-5/-4
Website .net.merrimackcountywww

Merrimack County is a Hillsborough and Rockingham counties, and is named for the Merrimack River.[3]

Merrimack County comprises the Concord, NH Micropolitan Statistical Area, which is also included in 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.[4]


  • Geography 1
    • Adjacent counties 1.1
    • National protected area 1.2
  • Demographics 2
  • Politics 3
  • Communities 4
    • Cities 4.1
    • Towns 4.2
    • Census-designated places 4.3
    • Villages 4.4
  • See also 5
  • References 6
  • External links 7


According to the U.S. Census Bureau, the county has a total area of 956 square miles (2,480 km2), of which 934 square miles (2,420 km2) is land and 22 square miles (57 km2) (2.3%) is water.[5] It is the third-largest county in New Hampshire by land area. The highest point in Merrimack county is Mount Kearsarge, on the border of Warner and Wilmot, at 2,937 feet (895 m).

Adjacent counties

National protected area


As of the census[11] of 2000, there were 136,225 people, 51,843 households, and 35,460 families residing in the county. The population density was 146 people per square mile (56/km²). There were 56,244 housing units at an average density of 60 per square mile (23/km²). The racial makeup of the county was 97.08% White, 0.54% Black or African American, 0.23% Native American, 0.86% Asian, 0.02% Pacific Islander, 0.23% from other races, and 1.04% from two or more races. 1.00% of the population were Hispanic or Latino of any race. 16.5% were of English, 13.4% Irish, 12.7% French, 11.0% French Canadian, 8.4% American, 6.4% German and 6.0% Italian ancestry according to Census 2000. 94.2% spoke English, 2.9% French and 1.1% Spanish as their first language.

There were 51,843 households out of which 33.90% had children under the age of 18 living with them, 54.90% were married couples living together, 9.80% had a female householder with no husband present, and 31.60% were non-families. 24.60% of all households were made up of individuals and 9.00% had someone living alone who was 65 years of age or older. The average household size was 2.51 and the average family size was 3.00.

In the county the population was spread out with 24.90% under the age of 18, 8.10% from 18 to 24, 30.60% from 25 to 44, 24.00% from 45 to 64, and 12.40% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 97.00 males. For every 100 females age 18 and over, there were 93.70 males.

The median income for a household in the county was $48,522, and the median income for a family was $56,842. Males had a median income of $37,722 versus $27,207 for females. The per capita income for the county was $23,208. About 4.10% of families and 5.90% of the population were below the poverty line, including 6.60% of those under age 18 and 5.70% of those age 65 or over.


Presidential election results[12]
Year Democratic Republican
2012 55.6% 44,756 42.9% 34,524
2008 56.3% 45,078 42.5% 34,010
2004 52.2% 39,975 47.1% 36,060
2000 48.1% 30,622 47.1% 30,028




Census-designated places


See also


  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved September 24, 2013. 
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ^
  4. ^ "Centers of Population by State: 2010". United States Census Bureau. Retrieved April 2, 2014. 
  5. ^ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved December 27, 2014. 
  6. ^ "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2014". Retrieved June 4, 2015. 
  7. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved December 27, 2014. 
  8. ^ "Historical Census Browser". University of Virginia Library. Retrieved December 27, 2014. 
  9. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved December 27, 2014. 
  10. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved December 27, 2014. 
  11. ^ "American FactFinder".  
  12. ^ "Dave Leip's Atlas of U.S. Presidential Elections". Retrieved 2011-06-11. 

External links

  • Merrimack County official website
  • National Register of Historic Places listing for Merrimack County

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