
Milroy
- County:
- Mifflin County
- County Seat:
- No
- Area (mi²):
- 1.009
- State:
- Pennsylvania
Milroy is a CDP located in Mifflin County, Pennsylvania. Milroy has a 2025 population of 1,570. Milroy is currently growing at a rate of 0.26% annually and its population has increased by 12.79% since the most recent census, which recorded a population of 1,392 in 2020.
The average household income in Milroy is $70,350 with a poverty rate of 31.08%. The median age in Milroy is 44.1 years: 44.5 years for males, and 43.4 years for females.