
Canonsburg
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 2.31
- State:
- Pennsylvania
Canonsburg is a borough located in Washington County, Pennsylvania. Canonsburg has a 2025 population of 9,549. Canonsburg is currently declining at a rate of -0.42% annually and its population has decreased by -2.04% since the most recent census, which recorded a population of 9,748 in 2020.
The average household income in Canonsburg is $90,448 with a poverty rate of 5.83%. The median age in Canonsburg is 36.8 years: 36.6 years for males, and 37.2 years for females.