
Fallowfield township
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 21.272
- State:
- Pennsylvania
Fallowfield township is located in Washington County, Pennsylvania. Fallowfield township has a 2025 population of 4,004. Fallowfield township is currently declining at a rate of -0.42% annually and its population has decreased by -2.34% since the most recent census, which recorded a population of 4,100 in 2020.
The average household income in Fallowfield township is $91,736 with a poverty rate of 7.86%. The median age in Fallowfield township is 51.1 years: 51.1 years for males, and 51.2 years for females.