
Millville
- County:
- Columbia County
- County Seat:
- No
- Area (mi²):
- 0.981
- State:
- Pennsylvania
Millville is a borough located in Columbia County, Pennsylvania. Millville has a 2025 population of 986. Millville is currently growing at a rate of 0.1% annually and its population has increased by 0.61% since the most recent census, which recorded a population of 980 in 2020.
The average household income in Millville is $76,655 with a poverty rate of 18.75%. The median age in Millville is 42.8 years: 46.6 years for males, and 41.9 years for females.