Swarthmore 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. The name was changed to Swarthmore after the establishment of Swarthmore College. "Swarthmore" can be pronounced with the first "r" either vocalized or dropped due to differences in rhotic and non-rhotic accents.
Swarthmore is located at 39°54′6″N 75°20′49″W / 39.90167°N 75.34694°W / 39.90167; -75.34694 (39.901788, -75.347083).
According to the United States Census Bureau, the borough has a total area of 1.4 square miles (3.6 km²), all of it land.