
West Sunbury
- County:
- Butler County
- County Seat:
- No
- Area (mi²):
- 0.11
- State:
- Pennsylvania
West Sunbury is a borough located in Butler County, Pennsylvania. West Sunbury has a 2025 population of 173. West Sunbury is currently declining at a rate of -1.14% annually and its population has decreased by -4.95% since the most recent census, which recorded a population of 182 in 2020.
The average household income in West Sunbury is $70,326 with a poverty rate of 4.41%. The median age in West Sunbury is 28 years: 30.6 years for males, and 25.7 years for females.