Berwyn is a census-designated place (CDP) in Chester County, Pennsylvania, United States.

[5] According to the U.S. Census Bureau, Berwyn has a total area of 1.9 square miles (4.8 km2), all land.

[6] Berwyn is bordered by Devon to the east, Paoli to the west, Newtown Square to the south, and the Chesterbrook section of Wayne to the north.

The population of Zip Code 19312, which includes all of Berwyn and small areas of Willistown and Newtown townships, was 11,745 at the 2020 census.

[9] Points of interest include the Easttown Public Library, the Upper Main Line YMCA, Teegarden Park and Glen Brook Farm.

Ametek, Hardinge, Inc., Trinseo, Triumph Group, and TE Connectivity have operational headquarters based in Berwyn.

[12] Frank Johnson Memorial Park, in the Berwyn CDP, is operated by the township government.

It is a 48 acre park, located off Walnut Lane at Bodine Road which serves as passive open space and a stream corridor buffer for Crabby Creek.