[1] The village is in the parish of Cilrhedyn, which also straddles the counties of Carmarthenshire and Pembrokeshire.

[2][3][4] The Afon Cych valley is wooded with steep sides and narrow lanes; after heavy rain in May 2002 part of the road to the south of Cwmcych fell 20 ft (6.1 m) into the river.

[5] In the centre of the village is the Grade II listed bridge, Pont Cych, dated 1737 but probably rebuilt in the 19th century.

[6][7] Until 2015 there was a long-standing pub called the Fox and Hounds; this has since become a private dwelling.

[9] There are no places of worship in Cwmcych but there are several chapels and the parish church within one or two miles (1.6 or 3.2 km).