The constituency was created for the 1950 general election, and abolished for the 1983 general election. The majority of the electorate (61%) passed to the new Vale of Glamorgan constituency where they formed a majority (76.8%) of this seat. The district of Penarth which formed 23.6% of the constituency joined the majority of the Cardiff SE seat to form the new Cardiff South and Penarth.
Boundaries
1950–1955: The Borough of Barry, and the Rural District of Cardiff.
1955–1974: The Borough of Barry, and the Rural District of Cardiff except the parts of the parishes of Lisvane and Radyr added to the County Borough of Cardiff by the Cardiff Extension Act 1950.
1974–1983: The Borough of Barry, the Urban District of Penarth, and the Rural District of Cardiff except the parish of Van.
^ abcdefgCraig, F. W. S. (1971). British parliamentary election results 1950-1970 (1 ed.). Chichester: Political Reference Publications. ISBN9780900178023. Page 577
^"Politics Resources". Election February 1974. Politics Resources. 28 February 1974. Archived from the original on 11 August 2011. Retrieved 2 February 2021.
^"Politics Resources". Election October 1974. Politics Resources. 10 October 1974. Archived from the original on 11 August 2011. Retrieved 2 February 2021.
^"Politics Resources". Election 1979. Politics Resources. 3 May 1979. Archived from the original on 11 August 2011. Retrieved 2 February 2021.