Donegal
- County:
- Westmoreland County
- County Seat:
- No
- Area (mi²):
- 0.227
- State:
- Pennsylvania
Donegal is a borough located in Westmoreland County, Pennsylvania. Donegal has a 2026 population of 101. Donegal is currently declining at a rate of 0% annually and its population has decreased by -1.94% since the most recent census, which recorded a population of 103 in 2020.
The median household income in Donegal is $40,000 with a poverty rate of 19.1%. The median age in Donegal is 65.9 years: 66.5 years for males, and 65.9 years for females. For every 100 females there are 169.7 males.