
Blawnox
- County:
- Allegheny County
- County Seat:
- No
- Area (mi²):
- 0.296
- State:
- Pennsylvania
Blawnox is a borough located in Allegheny County, Pennsylvania. Blawnox has a 2025 population of 1,367. Blawnox is currently declining at a rate of -1.23% annually and its population has decreased by -5.98% since the most recent census, which recorded a population of 1,454 in 2020.
The average household income in Blawnox is $72,649 with a poverty rate of 20.69%. The median age in Blawnox is 51.8 years: 48.7 years for males, and 59.8 years for females.