Merrimack County NH Information


Merrimack County Subdivisions

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  1. Merrimack County 2018 Demographic Data
  2. Growth Rates forMerrimack County (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. New Hampshire Research Tools (Easy Tools & Current Data)
  3. New Hampshire Data Comparison Tool - 2018 Demographics

Merrimack County NH Data & Demographics (As of July 1, 2018)


Total Population 152,963
Population in Households 146,024
Population in Familes 116,483
Population in Group Qrtrs 6,939
Population Density2 164
Diversity Index3 16


Median Household Income $71,054
Average Household Income $92,704
Per Capita Income $36,471


Total Housing Units 65,827 (100%)
Owner Occupied HU 41,743 (63.4%)
Renter Occupied HU 17,597 (26.7%)
Vacant Housing Units 6,487 ( 9.9%)
Median Home Value $237,877
Average Home Value $287,015


Total Households 59,340
Average Household Size 2.46
Family Households 39,178
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2018 2018-2023
Population 0.53% 0.54%
Households 0.47% 0.54%
Families 0.34% 0.45%
Median Household Income   1.7%
Per Capita Income   1.81%


Merrimack County NH - Peer Comparisons by Rank and Percentile

The table below compares Merrimack County to the other 10 counties and county equivalents in New Hampshire by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 3 80th
Population Density # 4 70th
Diversity Index # 5 60th
Median Household Income # 3 80th
Per Capita Income # 3 80th

Additional comparisons and rankings can be made with a VERY EASY TO USE New Hampshire Census Data Comparison Tool.

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New Hampshire Census Data Comparison Tool

Compare New Hampshire July 1, 2018 Data
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