Church Village (Welsh: Pentre'r Eglwys) is a large village in the historic parish and community of Llantwit Fardre, located within the County Borough of Rhondda Cynon Taff. The village is centrally located being around 4 miles from the local principal towns of Llantrisant to the southwest and Pontypridd to the north, and is situated around 10 miles northwest of Cardiff city centre.
Tonteg is a village around 3.5miles from Pontypridd, 9 miles north-west of Cardiff and 4 miles north-east of Llantrisant, within the community of Llantwit Fardre. Tonteg is situated next to Church Village and the boundaries between the two villages are blurred. A significant part of the Treforest Industrial Estate falls within the Willowford area of Tonteg, where many businesses and headquarters are based.
The CF38 postcode district lies within or includes part of the following towns, counties, localities, electoral wards and stations: Beddau, Church Village, Efail Isaf, Llantrisant Town, Llantwit Fardre, Pontypridd, Rhondda, Tonteg, Ton-teg, Tyn-y-nant, Upper Church Village.