Covering 567 acres (2.29 km2), it is the smallest parish in the diocese of St Asaph.
It is approximately three miles north of Ruthin and is bounded to the west by the Afon Clwyd.
Its notable features include a window dating from 1626, a reading desk from 1730, and a reredos from 1846.
The church is obscured from the main road by a red-brick rectory in front of it, and by a few residential buildings.
About half a mile south of the church is Plas Llanychan, a mansion built in 1880.