
Fairfield township
- County:
- Adams County
- County Seat:
- No
- Area (mi²):
- 12.136
- State:
- Pennsylvania
Fairfield township is located in Adams County, Pennsylvania. Fairfield township has a 2025 population of 2,777. Fairfield township is currently declining at a rate of -0.39% annually and its population has decreased by -1.91% since the most recent census, which recorded a population of 2,831 in 2020.
The average household income in Fairfield township is $95,657 with a poverty rate of 6.7%. The median age in Fairfield township is 45.4 years: 44.6 years for males, and 45.7 years for females.