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. The borough was originally part of Springfield Township, and grew up around Swarthmore College, which was founded in 1864. The advent of passenger rail service from Philadelphia in the 1880s greatly enhanced the desirability of the borough as a commuter suburb, and the borough was incorporated in 1893. The Ogden House and Benjamin West Birthplace are listed on the National Register of Historic Places.
The median income for a household in the borough was $138,653, and the median income for a family was $187,874. Males had a median income of $71,750 versus $51,117 for females. The per capita income for the borough was $40,482. About 0.5% of families and 2.1% of the population were below the poverty line, including none of those under age 18 and 1.7% of those age 65 or over.