
Farrell
- County:
- Mercer County
- County Seat:
- No
- Area (mi²):
- 2.264
- State:
- Pennsylvania
Farrell is a city located in Mercer County, Pennsylvania. Farrell has a 2025 population of 4,098. Farrell is currently declining at a rate of -0.75% annually and its population has decreased by -3.64% since the most recent census, which recorded a population of 4,253 in 2020.
The average household income in Farrell is $59,448 with a poverty rate of 28.41%. The median age in Farrell is 46.4 years: 39.7 years for males, and 51.6 years for females.