St Anthony-in-Roseland is situated in the Deanery and Hundred of Powder. It is bounded on the South by the English Channel, on the West by the estuary of Falmouth harbour, on the North by St Mawes creek, and on the East by Gerrans. The village is situated on the Roseland Peninsula to the East of the Carrick Roads and about nine miles South-West of Tregony. St Anthony-in-Roseland Parish is in the Carrick district near to the mouth of the River Fal and the Carrick Roads. The parish no longer exists as a civil unit; it was incorporated into the parish of Gerrans in 1934.