Mevagissey is situated in the Deanery and Hundred of Powder. It is bounded on the North by St Austell and St Ewe, on the East by St Austell Bay, on the South by Gorran, and on the West by Gorran and St Ewe. This parish contains the ancient fishing port of Mevagissey on the South coast of Cornwall and is South-West of St Austell.