Delaware County, Pennsylvania
Delaware County is a county in Pennsylvania with an estimated population of 576,720 in 2023. 28 cities, towns and Census places in it are indexed here.
Largest places in Delaware County
Chester 33,595Yeadon 12,247Lansdowne 11,077Darby 10,614Collingdale 8,833Brookhaven 8,291Ridley Park 7,216Glenolden 7,168Clifton Heights 6,796Folcroft 6,735Swarthmore 6,536Prospect Park 6,374Sharon Hill 5,958Norwood 5,890Media 5,862Aldan 4,210Upland 3,036Chester Heights 2,918Morton 2,756East Lansdowne 2,687Colwyn 2,448Eddystone 2,435Marcus Hook 2,432Parkside 2,303Trainer 1,960Millbourne 1,202Rose Valley 1,012Rutledge 778
About Delaware County
Delaware County is one of the counties of Pennsylvania. County governments in Pennsylvania handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.