Get to know Columbia
The practical stuff — trash day, town hall, schools — plus the town’s story and where to go. Kept current by neighbors.
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The basics
About Columbia
Census-designated place in Warren County, New Jersey, USColumbia 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.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
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Town essentials
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