Ridley Township municipal offices are located at 100 East MacDade Blvd., Folsom, PA 19033; phone 610‑534‑4800.
The present structure of Ridley as a second class township occurred in 1906. The township's naming is credited to John Simcock ca. 1687, a wealthy Quaker who had settled in the area around 1682, having purchased 2,200 acres. White settlers were found in the area that is now Ridley Township as early as 1644. Early villages within the township (18th-19th centuries) included: Crumlynne, Eddystone, Folsom, Glenolden, Holmes, Leedom, Milmont, Norwood, Prospect Park, Ridley Park, Rutledge, and Woodlyn. Some of these are no longer extant; other villages grew and at various times incorporated as boroughs. Prior to 1790 the township include what is now Tinicum Township.
Nearby Towns: Aldan Boro • Aston Twp • Brookhaven Boro • Chester City • Chester Twp • Clifton Heights Boro • Collingdale Boro • Colwyn Boro • Darby Boro • Darby Twp • East Lansdowne Boro • Eddystone Boro • Folcroft Boro • Glenolden Boro • Greenwich Twp • Haverford Twp • Lansdowne Boro • Lower Chichester Twp • Lower Merion Twp • Marcus Hook Boro • Marple Twp • Media Boro • Middletown Twp • Millbourne Boro • Morton Boro • Nether Providence Twp • Newtown Twp • Norwood Boro • Parkside Boro • Paulsboro Boro • Prospect Park Boro • Radnor Twp • Ridley Park Boro • Rose Valley Boro • Royersford Boro • Rutledge Boro • Sharon Hill Boro • Springfield Twp • Swarthmore Boro • Tinicum Twp • Trainer Boro • Upland Boro • Upper Darby Twp • Upper Providence Twp • Yeadon Boro •