* Annual estimated passenger usage based on sales of tickets in stated financial year(s) which end or originate at Dyffryn Ardudwy from Office of Rail Regulation statistics. Methodology may vary year on year.
The station once had two platforms and was a passing place for trains between Harlech and Barmouth. Since the passing loop was lifted all trains use the down platform and the station building on the up platform is today a dwelling. The gated level crossing is controlled by a crossing keeper, who resides in a cabin erected on the up platform. Dyffryn Ardudwy gives its name to the district and to the very extensive beach and sand dunes on the coast nearby that are known as Morfa Dyffryn.