The parish of St Ervan, (Cornish: Sen Erven), is situated in the Deanery and Hundred of Pydar. It is bounded on the north by St Merryn and Padstow, on the east by St Petroc Minor (now known as Little Petherick) and St Columb Major, on the south by Mawgan in Pydar, and on the west by St Eval. The parish of St Ervan is located near the north coast of Cornwall, about three miles south-west of Padstow. The church, which is dedicated to an early Celtic saint, nestles on the side of a hill, the lane beyond plunging deeply down to end at a ford beside Millingworth Mill. When the mill was in use, St Ervan had an annual fair on 10th October; it ceased operating around 1850.
Besides the Churchtown, the villages in the parish are: Rumford and Penrose. The parish also contains the following farms: Trembleathe Barton, Trevengenow, Trewinnick, Treravel, Trenouth, Bogee, Treleigh, Pentruse, Trethewey, Eddystone and Treburrick.
Most parish and church description(s) on these pages are from Lake's Parochial History of the County of Cornwall by J Polsue (Truro, 1867 - 1873)