Martinsville, NJ Profile: Facts, Map & Data


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Martinsville, New Jersey - Basic Facts

The Martinsville Census Designated Place had a population of 12,338 as of July 1, 2017. Martinsville ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in New Jersey. See peer rankings below.

The primary coordinate point for Martinsville is located at latitude 40.6029 and longitude -74.5758 in Somerset County. The formal boundaries for the Martinsville Census Designated Place (see map below) encompass a land area of 12.32 sq. miles and a water area of 0.08 sq. miles. Somerset County is in the Eastern time zone (GMT -5). The elevation is 338 feet.

The Martinsville Census Designated Place (GNIS ID: 2584010) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Martinsville Census Designated Place is located within Township of Bridgewater, a minor civil division (MCD) of Somerset County.

Beneath the boundary map are tables with Martinsville population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Martinsville: Martinville.

Neighborhood Data

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Martinsville Census Designated Place, NJ Boundary Map

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Boundary Maps: Township of Bridgewater | Somerset County | New Jersey Counties

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Martinsville, NJ Data & Demographics (As of July 1, 2017)


Total Population 12,338
Daytime Population: Workers 4,125
Daytime Population: Residents 6,184
Total Daytime Population (TDP) 10,309
Ratio TDP/Total Population1 0.84
Population in Households 12,300
Population in Familes 11,197
Population in Group Qrtrs 38
Population Density2 1,001
Diversity Index3 36


Median Household Income $153,912
Average Household Income $211,456
Per Capita Income $76,051


Total Housing Units 4,573 (100%)
Owner Occupied HU 4,096 (89.6%)
Renter Occupied HU 335 ( 7.3%)
Vacant Housing Units 142 ( 3.1%)
Median Home Value $595,557
Average Home Value $640,092


Total Households 4,431
Average Household Size 2.78
Family Households 3,576
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 0.41% 0.48%
Households 0.32% 0.4%
Families 0.34% 0.39%
Median Household Income   0.95%
Per Capita Income   1.67%

Martinsville, NJ - Peer Comparisons by Rank and Percentile

The table below compares Martinsville to the other 545 incorporated cities, towns and CDPs in New Jersey 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 # 103 81st
Population Density # 434 21st
Diversity Index # 321 41st
Median Household Income # 24 96th
Per Capita Income # 23 96th

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

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