
Harmonsburg
- County:
- Crawford County
- County Seat:
- No
- Area (mi²):
- 1.377
- State:
- Pennsylvania
Harmonsburg is a CDP located in Crawford County, Pennsylvania. Harmonsburg has a 2025 population of 129. Harmonsburg is currently declining at a rate of -12.24% annually and its population has decreased by -64.75% since the most recent census, which recorded a population of 366 in 2020.
The average household income in Harmonsburg is $58,126 with a poverty rate of 49.37%. The median age in Harmonsburg is 56.7 years: 55.6 years for males, and 61.3 years for females.