BAGILLT, town, Flintshire, Wales, 14m. from Chester on the estuary of the Dee, in the ancient parish of Holywell. Pop. (1931) of Holywell Rural C.P. 3,423. Its situation on the Welsh border brought it into prominence in the middle ages. Near by is Mostyn Hall, dating from the time of Henry VI., the seat of one of the oldest Welsh families. With the development of the North Wales coal-field during the latter half of the 19th century and the proximity of the Lancashire industrial area, the town became the centre of zinc, lead, iron, alkali and chemical works. Trade de pression after the War affected the prosperity of this and other industrial towns of the area.
Bagillt has a station on the L.M.S. main coast route—Chester to Holyhead.