Delaware County, Pennsylvania

Delaware County: County in Pennsylvania, United States

About

Delaware County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 558,979 and a population density of 1,132 people per km². After 10 years in 2020 county had an estimated population of 566,753 inhabitants. Its county seat is Media. The county was created 234 years ago in 1789.

Delaware County locator map
Location of Delaware County on Pennsylvania map.

Quick Facts about Delaware County

Population : 566,753 (2020)
Country : United States of America
State : Pennsylvania (United States)
Different from : Delaware County, Delaware County, Delaware County, Delaware County, Delaware County
Area : 494 km2
Official name : Delaware County
Water as percent of area : 3.5%
Land as percent of area : 96.5%
Named for : Delaware River
Capital : Media
Establishment : September 09, 1789
Time Zone : America/New_York
Local time : 04:19:46 (29th March 2024)
Density : 1,147 Pop. per km² as of 2020
Population growth : 1.37% (2010-2020)
DelawareCountyPACollage collage image
DelawareCountyPACollage
DelawareCountyPACollage collage image

Geography

Delaware County is located at 39°55'1"N 75°23'56"W (39.9168100, -75.3989000). It has 5 neighbors: New Castle County, Gloucester County, Chester County, Montgomery County and Philadelphia County.

Delaware County map

The largest city of Delaware County is Upland with a population of 33,972. Other cities include, Baldwin population 19,419, Yeadon population 11,489, Darby population 10,704 and Lansdowne population 10,641. See all Delaware County cities & populated places.

Delaware County Populated Places (more)

Cities, towns, neighborhoods & other populated places in Delaware County.

City Name Population Title
Upper Darby 82,883 Town in Delaware County, Pennsylvania, United States
Upland 33,972 City in Delaware County, Pennsylvania, United States
Radnor 31,902 Unincorporated community in Radnor Township, Pennsylvania, United States
Drexel Hill 28,043 Census designated place
Upper Providence 24,535 Township in Delaware County, Pennsylvania
Marple 23,960 Public school in Newtown Square, Delaware County, Pennsylvania, United States
Baldwin 19,419 Borough in Allegheny County, Pennsylvania, United States
Aston 16,754 Township in Delaware County, Pennsylvania
Yeadon 11,489 Borough in Delaware County, Pennsylvania
Broomall 10,789 Census designated place in Pennsylvania
Darby 10,704 Borough in Delaware County, Pennsylvania, United States
Lansdowne 10,641 Borough in Pennsylvania, United States
Woodlyn 9,485 Census designated place
Moore 9,470 Township in Northampton County, Pennsylvania, United States of America
Collingdale 8,781 Borough of Pennsylvania
Brookhaven 8,053 Borough in Delaware County, Pennsylvania

Delaware County has 5 neighbours.

Demographics

The population of Delaware County increased by 1.37% in 10 years.

Year Population % Change Method
2010 558,979 - census
2011 559,275 0.05% estimation process
2012 560,761 0.26% estimation process
2013 561,499 0.13% estimation process
2014 562,696 0.21% estimation process
2015 563,225 0.09% estimation process
2016 563,708 0.09% estimation process
2017 563,858 0.03% estimation process
2018 565,231 0.24% estimation process
2019 566,747 0.27% estimation process
2020 566,753 0% estimation process

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People born in Delaware County (18)

People born in Delaware County, including record producer Joel Dorn, botanist Thomas Potts James, engraver James B. Longacre, .

List

Other places with the same name (6)

Pennsylvania Other Counties (more counties)

County Name Population Title
Philadelphia County 1,578,487 County in Pennsylvania, United States
Philadelphia 1,578,487 The sixth most populous city in the United States and the center of the Philadelphia metropolitan area.
Allegheny County 1,211,358 County in the southwestern part of the U.
Montgomery County 833,869 County in Pennsylvania, United States
Bucks County 627,987 County in Pennsylvania, United States
Lancaster County 546,192 County in Pennsylvania, United States
Chester County 526,759 County in Pennsylvania, United States
York County 450,448 County in Maine, United States
Berks County 421,017 County in Pennsylvania, United States
Lehigh County 370,802 County in Pennsylvania, United States of America
Westmoreland County 347,087 County in Pennsylvania, United States
Luzerne County 316,982 County in Pennsylvania, United States
Northampton County 305,892 County in Pennsylvania, United States
Pittsburgh 299,226 The second most populous city in Pennsylvania and the center of the Pittsburgh metropolitan area.
Dauphin County 279,874 County in Pennsylvania, United States
Erie County 268,426 County in Pennsylvania, United States