st ervan is a rural civil parish and hamlet in cornwall, england, united kingdom. the hamlet is situated three miles (5 km) southwest of padstow. st ervan is named after st erbyn, the original patron of the church, who is said to have been the father of st selevan. notable features in st ervan are the anglican church, the village hall and the nonconformist cemetery. the parish population at the 2011 census was 521. in addition to the hamlet of st ervan, also called churchtown, the parish incorporates the hamlets of penrose and rumford.