
Aldan
- County:
- Delaware County
- County Seat:
- No
- Area (mi²):
- 0.597
- State:
- Pennsylvania
Aldan is a borough located in Delaware County, Pennsylvania. Aldan has a 2025 population of 4,186. Aldan is currently declining at a rate of -0.29% annually and its population has decreased by -1.39% since the most recent census, which recorded a population of 4,245 in 2020.
The average household income in Aldan is $96,949 with a poverty rate of 7.22%. The median age in Aldan is 40.8 years: 38.6 years for males, and 43.3 years for females.