Located between Fishguard and Newport in the Pembrokeshire Coast National Park, it is a popular holiday destination on the A487 road.

At this time the walls of the parish church of St Brynach were washed by the sea at spring high tides.

[5] An electoral ward of the same name exists which includes the communities of Dinas Cross, Cwm Gwaun and Puncheston and had a population of 1,696 in 2011.

[6] Following the recommendations of a boundary review by the Local Government Boundary Commission for Wales, effective from the 2022 local elections, the Dinas Cross county ward was merged with the neighbouring community of Newport to create a new ward of 'Newport and Dinas', electing one county councillor.

At one time there was also a café, a school, Rhoshelyg garden centre, a garage, a petrol station, a full-time post office, one shop and a local blacksmith.