
Clarendon
- County:
- Warren County
- County Seat:
- No
- Area (mi²):
- 0.337
- State:
- Pennsylvania
Clarendon is a borough located in Warren County, Pennsylvania. Clarendon has a 2025 population of 395. Clarendon is currently declining at a rate of -0.75% annually and its population has decreased by -3.66% since the most recent census, which recorded a population of 410 in 2020.
The average household income in Clarendon is $68,185 with a poverty rate of 22.26%. The median age in Clarendon is 43.1 years: 40.4 years for males, and 44.4 years for females.