Somerset County NJ Information


Somerset County Subdivisions

Somerset County NJ Data & Demographics (As of July 1, 2015)


Total Population 334,511
Population in Households 330,381
Population in Familes 281,792
Population in Group Qrtrs 4,130
Population Density1 1,108
Diversity Index2 64


Total Households 121,330
Average Household Size 2.72
Family Households 87,313
Average Family Size 3


Total Housing Units 126,714 (100%)
Owner Occupied HU 90,633 (71.5%)
Renter Occupied HU 30,697 (24.2%)
Vacant Housing Units 5,384 ( 4.2%)
Median Home Value $474,657
Average Home Value $547,202


Median Household Income $103,971
Average Household Income $141,084
Per Capita Income $51,388
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.64% 0.72%
Households 0.57% 0.71%
Families 0.6% 0.73%
Median Household Income   2.15%
Per Capita Income   2.64%
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.


Somerset County NJ - Peer Comparisons by Rank and Percentile

The table below compares Somerset County to the other 21 counties and county equivalents in New Jersey by rank and percentile using July 1, 2015 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 # 13 43rd
Population Density1 # 10 57th
Diversity Index2 # 11 52nd
Median Household Income # 2 95th
Per Capita Income # 2 95th

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