Windsor Gardens is a suburb in the north-eastern suburbs of Adelaide, the capital of South Australia. The suburb is located 7-12 kilometers or 15 minutes from the Adelaide CBD. Situated between North East Road and the River Torrens with suburbs Holden Hill to the north and Klemzig to the south. A Windsor Gardens Post Office opened on 2 February 1954 but was replaced by the Greenacres office in 1963.