The area incorporating the current suburb of Ridleyton was originally granted to Osmond Gilles in March 1839.

In 1873, Ridley lodged a plan to subdivide his land, naming one part Ridleyton.

[7] The majority of residents (64.9%) are of Australian birth, with other common census responses being China (6.0%), Vietnam (3.4%), England (2.6%), India (1.7%), and Greece (1.5).

[7] Ridleyton is part of Hindmarsh Ward in the City of Charles Sturt local government area, being represented in that council by Paul Alexandrides and Alice Campbell.

[6] The suburb is represented in the South Australian House of Assembly by Peter Malinauskas[5] and federally by Steve Georganas.

This park includes a Girl Guide hall, barbecue area, public restrooms, creek, playing field and a children's playground.