In 2023, Columbia, NJ had a population of 152 people with a median age of 55.6 and a median household income of $84,531. Between 2022 and 2023 the population of Columbia, NJ declined from 209 to 152, a −27.3% decrease and its median household income declined from $118,438 to $84,531, a −28.6% decrease.
The 5 largest ethnic groups in Columbia, NJ are White (Non-Hispanic) (96.1%), Other (Hispanic) (3.95%), White (Hispanic) (0%), Black or African American (Non-Hispanic) (0%), and Black or African American (Hispanic) (0%).
None of the households in Columbia, NJ reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
100% of the residents in Columbia, NJ are U.S. citizens.
In 2023, the median property value in Columbia, NJ was $322,000, and the homeownership rate was 83%.
Most people in Columbia, NJ drove alone to work, and the average commute time was 26.6 minutes. The average car ownership in Columbia, NJ was 2 cars per household.