Romiley has been since 1974 a part of the Metropolitan Borough of Stockport, Greater Manchester, England. It borders Marple, Bredbury and Woodley. In the 2001 census Romiley ward, which included Compstall, Bredbury Green and a large part of Bredbury, had a population of 13,703.
From 1894 until 1974 Romiley was located in Bredbury and Romiley Urban District. Originally Romiley was a township in Chadkirk Chapelry of Stockport ancient parish, Macclesfield hundred, and became a civil parish in 1866.