 On 1 April 1996 the Rhymney Valley District was itself abolished, and the community has been part of the county borough of Caerphilly since that date.At the 2001 census Bedwas, Trethomas and Machen had a population of 10,428

The urban district council began operating a bus service in 1922.The UDC was one of the smallest municipal bus undertakings in the United Kingdom, with an average fleet size of seven vehicles.