Hempfield township
- County:
- Mercer County
- County Seat:
- No
- Area (mi²):
- 14.151
- State:
- Pennsylvania
Hempfield township is located in Mercer County, Pennsylvania. Hempfield township has a 2026 population of 3,632. Hempfield township is currently declining at a rate of -0.44% annually and its population has decreased by -2.39% since the most recent census, which recorded a population of 3,721 in 2020.
The median household income in Hempfield township is $49,653 with a poverty rate of 8.88%. The median age in Hempfield township is 52.7 years: 53 years for males, and 52.6 years for females. For every 100 females there are 82.3 males.