Location and coordinates are for the approximate centre of Llandyfrydog within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Llandyfrydog, par., Anglesey, in N. of co., on river Dulas, near Llanerchymedd ry. sta., 3819 ac., pop. 528.