Merrimack County NH Information


Merrimack County Subdivisions

Merrimack County NH Data & Demographics (As of July 1, 2017)


Total Population 151,549
Daytime Population: Workers 82,331
Daytime Population: Residents 71,084
Total Daytime Population (TDP) 153,415
Ratio TDP/Total Population1 1.01
Population in Households 144,441
Population in Familes 114,667
Population in Group Qrtrs 7,108
Population Density2 162
Diversity Index3 15


Median Household Income $70,516
Average Household Income $89,411
Per Capita Income $35,230


Total Housing Units 65,395 (100%)
Owner Occupied HU 40,959 (62.6%)
Renter Occupied HU 17,864 (27.3%)
Vacant Housing Units 6,572 (10.0%)
Median Home Value $240,908
Average Home Value $273,030


Total Households 58,823
Average Household Size 2.46
Family Households 38,886
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  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.


2010-2017 2017-2022
Population 0.47% 0.48%
Households 0.42% 0.5%
Families 0.28% 0.41%
Median Household Income   1.96%
Per Capita Income   2.55%


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, 2017 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.