Fairfield township
- County:
- Adams County
- County Seat:
- No
- Area (mi²):
- 19.331
- State:
- Pennsylvania
Fairfield township is located in Adams County, Pennsylvania. Fairfield township has a 2026 population of 988. Fairfield township is currently declining at a rate of -0.1% annually and its population has decreased by -2.08% since the most recent census, which recorded a population of 1,009 in 2020.
The median household income in Fairfield township is $69,063 with a poverty rate of 8.16%. The median age in Fairfield township is 47.8 years: 45.4 years for males, and 52.7 years for females. For every 100 females there are 108.2 males.