
Marion Heights
- County:
- Northumberland County
- County Seat:
- No
- Area (mi²):
- 0.153
- State:
- Pennsylvania
Marion Heights is a borough located in Northumberland County, Pennsylvania. Marion Heights has a 2025 population of 546. Marion Heights is currently declining at a rate of -0.36% annually and its population has decreased by -2.15% since the most recent census, which recorded a population of 558 in 2020.
The average household income in Marion Heights is $52,688 with a poverty rate of 21.71%. The median age in Marion Heights is 41 years: 37.3 years for males, and 53.5 years for females.