Columbia, New Jersey

Columbia, New Jersey
Columbia as seen from the end of the Portland–Columbia Pedestrian Bridge
Columbia
Location in Warren County
Columbia
Location in New Jersey
Columbia
Location in the United States
Coordinates: 40°55′33″N 75°05′39″W / 40.925868°N 75.094062°W / 40.925868; -75.094062
Country United States
State New Jersey
CountyWarren
TownshipKnowlton
Area
 • Total
0.13 sq mi (0.33 km2)
 • Land0.10 sq mi (0.26 km2)
 • Water0.027 sq mi (0.07 km2)  20.94%
Elevation
305 ft (93 m)
Population
 (2020)
 • Total
215
 • Density2,147.8/sq mi (829.28/km2)
Time zoneUTC−05:00 (Eastern (EST))
 • Summer (DST)UTC−04:00 (EDT)
ZIP Code
07832
Area code908
FIPS code34-14590
GNIS feature ID02583981

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.