St Clether is situated in the Hundred of Lesnewth, and the Deanery of Trigg Major. It is bounded on the North by Davidstow and Treneglos, on the East by Laneast, on the South by Altarnun, and on the West by St Breward and Advent. St Clether is a small village beside the River Inney with the parish Church standing some distance away. A little way on from the Church following the river stands what is considered to be Cornwall's most beautifully situated Holy Well.