Glenolden
- County:
- Delaware County
- County Seat:
- No
- Area (mi²):
- 0.975
- State:
- Pennsylvania
Glenolden is a borough located in Delaware County, Pennsylvania. Glenolden has a 2026 population of 7,266. Glenolden is currently growing at a rate of 0.65% annually and its population has increased by 0.58% since the most recent census, which recorded a population of 7,224 in 2020.