For the purposes of local government Gwinear–Gwithian has a parish council and elects councillors every four years. The principal local authority is Cornwall Council. The population of the parish was 3032 in the 2001 census. This increased to 3,177 at the 2011 census An electoral ward also exists with St. Erth added to the name. The population here in 2011 was 4,642.
The parish church of St Gwinear is of the 13th and 14th centuries (tower mid 15th century, built of granite in three stages). There are three aisles: the south aisle which is shorter than the nave, an inner north aisle, and further north the Arundell Aisle. Lanyon Farm and Polkinghorne Farm (both less than a mile from Gwinear Road Station) are both of the 17th century.