Columbia, NJ Profile: Facts, Map & Data

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Columbia, New Jersey - Basic Facts

The Columbia Census Designated Place is a community or populated place (Class Code U5) located in Warren County at latitude 40.9262 and longitude -75.0927. Warren County is in the Eastern time zone (GMT -5). The elevation is 308 feet.

The formal official name is the Columbia Census Designated Place, but most people and references simply refer to it as Columbia, New Jersey.

The U5 Census Class Code for Columbia indicates a populated place that is also a census designated place with the same name. The Census Designated Place has a Functional Status Code "S" which identifies a statistical entity.

The formal boundaries for the Columbia Census Designated Place (see map below) encompass a land area of 0.1 sq. miles and a water area of 0.03 sq. miles.

Columbia Census Designated Place, NJ Boundary Map

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Boundary Maps: Township of Knowlton | Warren County | New Jersey Counties

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Columbia, NJ Data & Demographics (As of July 1, 2014)


Total Population 223
Population in Households 219
Population in Familes 196
Population in Group Qrtrs 4
Population Density1 2,237
Diversity Index2 16


Total Households 75
Average Household Size 2.92
Family Households 61
Average Family Size 3


Total Housing Units 85 (100%)
Owner Occupied HU 66 (77.6%)
Renter Occupied HU 10 (11.8%)
Vacant Housing Units 10 (11.8%)
Median Home Value $247,727
Average Home Value $275,385


Median Household Income $95,633
Average Household Income $102,731
Per Capita Income $36,502
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population -0.62% -0.45%
Households -0.62% -0.27%
Families 2.47% -0.33%
Median Household Income   0.68%
Per Capita Income   1.03%
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.

Columbia, NJ - Peer Comparisons by Rank and Percentile

The table below compares Columbia to the other 545 incorporated cities, towns and CDPs in New Jersey 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 # 522 5th
Population Density1 # 302 45th
Diversity Index2 # 475 13th
Median Household Income # 160 71st
Per Capita Income # 265 52nd

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