Yeadon is a borough in Delaware County, Pennsylvania, United States. It borders the city of Philadelphia. The population was 11,443 at the 2010 census.
Yeadon is located in eastern Delaware County at 39°55′58″N 75°15′6″W (39.932862, -75.251540). It is bordered on the south by the borough of Darby, on the northwest by the borough Lansdowne, on the west and north by Upper Darby Township, and on the east, across Cobbs Creek, by the city of Philadelphia, whose Center City lies 6 miles (10 km) to the east.
According to the United States Census Bureau, Yeadon has a total area of 1.6 square miles (4.1 km2), all of it land.
As of Census 2010, the racial makeup of the borough was 7.5% White, 88.6% African American, 0.2% Native American, 0.8% Asian, 0.1% Native Hawaiian and Pacific Islander, 0.6% from other races, and 2.1% from two or more races. Hispanic or Latino of any race were 1.9% of the population .
As of the census of 2000, there were 11,762 people, 4,696 households, and 2,967 families residing in the borough. The population density was 7,297.1 people per square mile (2,820.7/km2). There were 4,958 housing units at an average density of 3,075.9 per square mile (1,189.0/km2). The racial makeup of the borough was 79.77% African American, 15.56% White, 0.21% Native American, 0.89% Asian, 0.01% Pacific Islander, 0.41% from other races, and 2.15% from two or more races.