Swarthmore (/ˈswɔːrθmɔːr/ SWORTH-mor, locally /ˈswɑːθmɔːr/ SWAHRTH-mor)[3] is a borough in Delaware County, Pennsylvania, United States.

Swarthmore was originally named "Westdale" in honor of noted painter Benjamin West, who was one of the early residents of the town.

Many of the streets in the southern half of town are named for eastern colleges, and much of the borough's housing stock dates from the Victorian period through the 1920s.

The Ogden House and Benjamin West Birthplace are listed on the National Register of Historic Places.

Crum Creek, a southward-flowing tributary of the Delaware River, forms the western boundary of the borough.

[4] It has a humid subtropical climate (Cfa) and average monthly temperatures range from 33.1 °F in January to 78.0 °F in July.

Notre Dame de Lourdes Catholic School is located adjacent to the borough in Ridley Township.

It follows a north–south alignment through the center of the borough via Chester Road, Swarthmore Avenue and Cedar Lane.

The Park Avenue Community Center is adjacent to Swarthmore Borough Hall and hosts a range of cultural activities, theater and music.