
Blain
- County:
- Perry County
- County Seat:
- No
- Area (mi²):
- 0.318
- State:
- Pennsylvania
Blain is a borough located in Perry County, Pennsylvania. Blain has a 2025 population of 229. Blain is currently growing at a rate of 0.44% annually and its population has increased by 1.33% since the most recent census, which recorded a population of 226 in 2020.
The average household income in Blain is $90,212 with a poverty rate of 1.06%. The median age in Blain is 27.6 years: 26.7 years for males, and 28.5 years for females.