Facts about Delaware County, Pennsylvania
Delaware County, colloquially referred to as Delco, is a county located in the U.S. state of Pennsylvania. With a population of 562,960, it is the fifth most populous county in Pennsylvania, and the third smallest in area. The county was created on September 26, 1789, from part of Chester County and named for the Delaware River. Its county seat is Media. Until 1850, Chester was the county seat of both Delaware County and, before that, of Chester County. Delaware County is adjacent to the city-county of Philadelphia and is included in the Philadelphia–Camden–Wilmington, PA–NJ–DE–MD Combined Statistical Area. Delaware County is the only county covered in its entirety by area codes 610 and 484.
GeographyAccording to the U.S. Census Bureau, the county has a total area of 191 square miles (490 km²), of which 184 square miles (480 km²) is land and 6.8 square miles (18 km²) (3.5%) is water. It is the third-smallest county in Pennsylvania by area. Delaware County is roughly diamond- or kite-shaped, with the four sides formed by the Chester County boundary to the northwest, the boundary with the state of Delaware (a portion of the "Twelve Mile Circle") to the southwest, the Delaware River (forming the border with the state of New Jersey to the southeast, and the city of Philadelphia and Montgomery County to the east and northeast.
As of the 2010 census, the county was 71.1% White non-Hispanic, 19.7% Black or African American, 0.2% Native American or Alaskan Native, 4.7% Asian, 0.0% Native Hawaiian, 2.0% were two or more races, and 0.9% were some other race. 3.0% of the population were of Hispanic or Latino ancestry. As of the 2000 census, there were 550,864 people, 206,320 households, and 139,472 families residing in the county. The population density was 2,990 people per square mile (1,155/km²). There were 216,978 housing units at an average density of 1,178 per square mile (455/km²). The racial makeup of the county was 80.32% White, 14.52% African American, 0.11% Native American, 3.29% Asian, 0.02% Pacific Islander, 0.56% from other races, and 1.19% from two or more races. 1.52% of the population were Hispanic or Latino of any race. 24.6% were of Irish, 17.5% Italian, 10.1% German and 6.7% English ancestry.
Serving Delaware County, Pennsylvania
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