
Sligo
- County:
- Clarion County
- County Seat:
- No
- Area (mi²):
- 1.407
- State:
- Pennsylvania
Sligo is a borough located in Clarion County, Pennsylvania. Sligo has a 2025 population of 665. Sligo is currently declining at a rate of -0.6% annually and its population has decreased by -2.92% since the most recent census, which recorded a population of 685 in 2020.
The average household income in Sligo is $75,743 with a poverty rate of 19.2%. The median age in Sligo is 46.4 years: 43.1 years for males, and 47.4 years for females.