Boundaries
This constituency was first created under the Redistribution of Seats Act 1885, for the 1885 general election. For the 1918 general election it was divided into Rhondda East and Rhondda West.
The constituency was re-united in 1974. Since 1974, the constituency has always had a large Labour majority, and in the 1987 UK general election was the safest seat for any party, anywhere in the UK.

History

Constituency created (1885)
1885 – 1918: William Abraham, Lib-Lab 1885 - 1910, then Labour
Constituency abolished (1918)
Constituency revived (1974)
1974 – 1983: Alec Jones, Labour
1983 – 2001: Allan Rogers, Labour
2001 – present: Chris Bryant, Labour Election results

Historical list of MPs
Election result, 2005 (BBC)
Election results, 1997 - 2001 (BBC)
Election results, 1997 - 2001 (Election Demon)
Election results, 1983 - 1992 (Election Demon)
Election results, 1992 - 2005 (Guardian)
Election results, 1974 - 2001 (Keele University)