Columbia
Census-designated place in Warren County, New Jersey

Columbia is an unincorporated community (census-designated place) in Warren County, New Jersey, with 215 residents (2020 Census). It sits at 305 ft (93 m) above sea level. The nearest town is Portland, 0.3 miles SW.
- 215residents (2020 Census)
- 305 ftelevation · 93 m
- 0.1 sq miland area · 0.3 km²
- 2,150 / sq mipopulation density
- 18351ZIP code
About Columbia
Columbia is an unincorporated community and census-designated place (CDP) located within Knowlton Township in Warren County, in the U.S. state of New Jersey. While the community has existed for over a century, the CDP was created as part of the 2010 United States census. As of the 2020 census, Columbia had a population of 215. The area is served as United States Postal Service ZIP Code 07832.
Text: Wikipedia · CC BY-SA 4.0
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Living in Columbia
- Median household income
- $74,125
- Median home value
- $334,800
- Median age
- 55.5
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Map of Columbia
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Open in Google Maps ›Columbia, NJ population
Columbia had 215 residents in the 2020 Census.
| 2020 Census | 215 |
|---|---|
| Density | 2,150 per sq mi (830 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Columbia at a glance
| State | New Jersey (NJ) |
|---|---|
| County | Warren County |
| Type | Census-designated place |
| Population | 215 (2020) |
| Land area | 0.10 sq mi (0.3 km²) |
| Water area | 0.03 sq mi (0.07 km²) |
| Elevation | 305 ft (93 m) |
| Coordinates | 40.9259° N, 75.0941° W |
| ZIP code | 18351 |
| Census code (GEOID) | 3414590 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Columbia
- Portland, PA0.3 mi SW
- Knowlton1.7 mi E
- Mount Bethel, PA2.1 mi SW
- Delaware2.6 mi SE
- Upper Mount Bethel, PA2.8 mi SW
- Hainesburg3.1 mi NE
- Delaware Water Gap, PA3.6 mi NW
- Mount Hermon5.2 mi E
- East Bangor, PA5.8 mi SW
- Hope6.3 mi E
- Blairstown6.3 mi NE
- Bridgeville6.5 mi SE
Straight-line distance between town centers.
Frequently asked questions about Columbia
What county is Columbia in?
Columbia is in Warren County, New Jersey.
What is the population of Columbia, NJ?
215 people lived in Columbia at the 2020 Census.
What is the ZIP code of Columbia, NJ?
The ZIP code of Columbia is 18351.
What is the elevation of Columbia?
305 feet (93 m) above sea level.
What towns are near Columbia?
Portland (0.3 mi), Knowlton (1.7 mi), Mount Bethel (2.1 mi), Delaware (2.6 mi), Upper Mount Bethel (2.8 mi).
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