Merrimack County NH Information


Merrimack County Subdivisions

Merrimack County NH Data & Demographics (As of July 1, 2014)


Total Population 147,608
Population in Households 141,273
Population in Familes 112,273
Population in Group Qrtrs 6,335
Population Density1 158
Diversity Index2 14


Total Households 57,961
Average Household Size 2.44
Family Households 38,455
Average Family Size 3


Total Housing Units 64,826 (100%)
Owner Occupied HU 40,483 (62.4%)
Renter Occupied HU 17,478 (27.0%)
Vacant Housing Units 6,865 (10.6%)
Median Home Value $221,672
Average Home Value $242,861


Median Household Income $65,057
Average Household Income $81,847
Per Capita Income $32,296
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population 0.19% 0.18%
Households 0.37% 0.24%
Families 0.22% 0.14%
Median Household Income   3.38%
Per Capita Income   2.77%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


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, 2014 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 Density1 # 4 70th
Diversity Index2 # 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.