St Agnes (Cornish: Breanek) is a civil parish and a large village on the north coast of Cornwall, UK. The village is about five miles (8 km) north of Redruth and ten miles (16 km) southwest of Newquay. An electoral ward exists stretching as far south as Blackwater. The population at the 2011 census was 7,565. The St Agnes district has a heritage of industrial archaeology and much of the landscape is of considerable geological interest. There are also stone-age remains in the parish. The manor of Tywarnhaile was one of the 17 Antiqua maneria of the Duchy of Cornwall.