* Annual estimated passenger usage based on sales of tickets in stated financial year(s) which end or originate at Troed-y-rhiw from Office of Rail Regulation statistics. Methodology may vary year on year.
The station was first opened by the Taff Vale Railway in late 1841 though it did not appear in Bradshaw's timetables until 1844. It was named Troedyrhiew from 1846/47 until 1 July 1924 when it became Troedyrhiw. The hyphens were added on 12 May 1980.