Mawnan is situated in the Deanery and Hundred of Kerrier. It is bounded on the North by Budock, on the East by the ocean, and on the South and West by the Helford Creek and Constantine. The parish is now known by its modern name of Mawnan Smith. The gardens, created at Glendurgan and Trebah by the Quakers Alfred and Charles Fox, are now open to the public. The villages and hamlets are Mawnan-Smith, Carlidnack or Carlinack, and Bareppa.