|Coordinates: 39°52′1″N 75°28′5″W / 39.86694°N 75.46806°WCoordinates: 39°52′1″N 75°28′5″W / 39.86694°N 75.46806°W|
|Elevation||299 ft (91 m)|
|Time zone||Eastern (EST) (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
|Area code(s)||610 and 484|
|GNIS feature ID||1203253|
Chelsea is an unincorporated community in Bethel Township in Delaware County, Pennsylvania, United States. Chelsea is located at the intersection of Concord Road, Chelsea Road, Foulk Road, and Valley Brook Road in the northern part of the township.