
Fairfield
- County:
- Adams County
- County Seat:
- No
- Area (mi²):
- 0.673
- State:
- Pennsylvania
Fairfield is a borough located in Adams County, Pennsylvania. Fairfield has a 2025 population of 546. Fairfield is currently growing at a rate of 0.55% annually and its population has increased by 3.02% since the most recent census, which recorded a population of 530 in 2020.
The average household income in Fairfield is $70,368 with a poverty rate of 24.57%. The median age in Fairfield is 48.2 years: 41.5 years for males, and 53.6 years for females.