
Smithfield
- County:
- Fayette County
- County Seat:
- No
- Area (mi²):
- 0.716
- State:
- Pennsylvania
Smithfield is a borough located in Fayette County, Pennsylvania. Smithfield has a 2025 population of 785. Smithfield is currently declining at a rate of -1.26% annually and its population has decreased by -5.99% since the most recent census, which recorded a population of 835 in 2020.
The average household income in Smithfield is $88,248 with a poverty rate of 9.29%. The median age in Smithfield is 40.6 years: 42 years for males, and 39.7 years for females.