Kea is situated in the Deanery and Hundred of Powder. It is bounded on the North by Kenwyn, on the East by the River Fal, which separates it from St Clement and St Michael Penkivel, on the South by Feock, Perranarworthal, and Gwennap, and on the West by part of Kenwyn and St Agnes. Two parishes were created from parts of Kea parish - Chacewater in 1828 and Baldhu in 1847.