
Clarksville
- County:
- Greene County
- County Seat:
- No
- Area (mi²):
- 0.097
- State:
- Pennsylvania
Clarksville is a borough located in Greene County, Pennsylvania. Clarksville has a 2025 population of 180. Clarksville is currently declining at a rate of -1.64% annually and its population has decreased by -7.22% since the most recent census, which recorded a population of 194 in 2020.
The average household income in Clarksville is $91,897 with a poverty rate of 6.09%. The median age in Clarksville is 38.7 years: 52.3 years for males, and 37.5 years for females.