
New Columbia
- County:
- Union County
- County Seat:
- No
- Area (mi²):
- 1.929
- State:
- Pennsylvania
New Columbia is a CDP located in Union County, Pennsylvania. New Columbia has a 2025 population of 816. New Columbia is currently declining at a rate of -1.57% annually and its population has decreased by -29.9% since the most recent census, which recorded a population of 1,164 in 2020.
The average household income in New Columbia is $87,922 with a poverty rate of 2.95%. The median age in New Columbia is 56.4 years: 57.4 years for males, and 56.2 years for females.