A watershed is an area of land within which all water from rain or snow drains into a body of water, such as a river, lake, or ocean.

History

Learn more about how Philadelphia’s rapid growth as an industrial hub informed development patterns and altered the natural hydrology and topography of the city's watersheds.

Find Your Watershed

Which watershed do you live/work in? Click here, enter your address, and find out.

Darby-Cobbs

Delaware

Pennypack

Poquessing

Schuylkill

Tookany/Tacony-Frankford

Wissahickon