St John's is a small village in the sheading of Glenfaba in the Isle of Man, in the island's central valley. It is in the House of Keys constituency of Glenfaba & Peel, which elects two MHKs.
Wikipedia https://en.wikipedia.org/wiki/St_John's,_Isle_of_Man
Coordinates 54°12'8.759" N -4°38'31.358" E