
Apollo
- County:
- Westmoreland County
- County Seat:
- No
- Area (mi²):
- 0.305
- State:
- Pennsylvania
Apollo is a borough located in Westmoreland County, Pennsylvania. Apollo has a 2025 population of 1,541. Apollo is currently declining at a rate of -0.84% annually and its population has decreased by -4.17% since the most recent census, which recorded a population of 1,608 in 2020.
The average household income in Apollo is $62,691 with a poverty rate of 11.84%. The median age in Apollo is 40.9 years: 38.6 years for males, and 44.9 years for females.