
Avondale
- County:
- Chester County
- County Seat:
- No
- Area (mi²):
- 0.484
- State:
- Pennsylvania
Avondale is a borough located in Chester County, Pennsylvania. Avondale has a 2025 population of 1,255. Avondale is currently declining at a rate of -0.24% annually and its population has decreased by -1.1% since the most recent census, which recorded a population of 1,269 in 2020.
The average household income in Avondale is $98,206 with a poverty rate of 7.33%. The median age in Avondale is 30.4 years: 29.8 years for males, and 31.7 years for females.