The Bishop of Menevia is the Ordinary of the Latin Rite Roman Catholic Diocese of Menevia in the Province of Cardiff. The Diocese of Menevia covers an area of 9,716 km2 (3,751 sq mi) roughly consisting of Carmarthenshire, Ceredigion, Neath Port Talbot, Pembrokeshire, the City and County of Swansea and the ancient counties of Brecknockshire and Radnorshire. The see is in Swansea, where the seat is located at Saint Joseph's Cathedral. The estimated Catholic population of the Diocese is 26,266 out of a total population of 788,550 (3.3%).