Metropolitan Borough of Stockport (created in 1889) became a county borough in 1936 and was diminished from the expansion of Lancashire, a ceremonial county and geographical area in North West England.
1 April 1974 
The borough was created in 1974, under the Local Government Act 1972, from the former area of the County Borough of Stockport and from the administrative county of Cheshire the urban districts of Bredbury and Romiley, Cheadle and Gatley, Hazel Grove and Bramhall and Marple. 
Stockport became a county borough in 1889 and was enlarged by gaining territory from Lancashire, including Reddish in 1906 and the Four Heatons in 1913. 
