Jennerstown
- County:
- Somerset County
- County Seat:
- No
- Area (mi²):
- 1.923
- State:
- Pennsylvania
Jennerstown is a borough located in Somerset County, Pennsylvania. Jennerstown has a 2026 population of 664. Jennerstown is currently declining at a rate of -0.3% annually and its population has decreased by -2.06% since the most recent census, which recorded a population of 678 in 2020.
The median household income in Jennerstown is $64,801 with a poverty rate of 9.79%. The median age in Jennerstown is 43.5 years: 41.1 years for males, and 46.9 years for females. For every 100 females there are 113.6 males.