Millstone, NJ Profile: Facts, Map & Data


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Millstone, New Jersey - Basic Facts

The Borough of Millstone had a population of 447 as of July 1, 2017. Millstone ranks in the lower quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in New Jersey. See peer rankings below.

The primary coordinate point for Millstone is located at latitude 40.4998 and longitude -74.5959 in Somerset County. The formal boundaries for the Borough of Millstone (see map below) encompass a land area of 0.74 sq. miles and a water area of 0.02 sq. miles. Somerset County is in the Eastern time zone (GMT -5). The elevation is 46 feet.

The Borough of Millstone (GNIS ID: 885302) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Beneath the boundary map are tables with Millstone 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 Millstone: Somerset Court House.

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Borough of Millstone, NJ Boundary Map

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


Total Population 447
Daytime Population: Workers 108
Daytime Population: Residents 221
Total Daytime Population (TDP) 329
Ratio TDP/Total Population1 0.74
Population in Households 447
Population in Familes 383
Population in Group Qrtrs 0
Population Density2 606
Diversity Index3 20


Median Household Income $94,121
Average Household Income $106,858
Per Capita Income $40,879


Total Housing Units 176 (100%)
Owner Occupied HU 146 (83.0%)
Renter Occupied HU 25 (14.2%)
Vacant Housing Units 5 ( 2.8%)
Median Home Value $415,254
Average Home Value $428,596


Total Households 171
Average Household Size 2.61
Family Households 124
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 0.93% 0.88%
Households 0.75% 0.81%
Families 0.69% 0.79%
Median Household Income   2.4%
Per Capita Income   2.92%

Millstone, NJ - Peer Comparisons by Rank and Percentile

The table below compares Millstone 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 # 502 8th
Population Density # 474 13th
Diversity Index # 454 17th
Median Household Income # 172 69th
Per Capita Income # 225 59th

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

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