Denbighshire ( Welsh: Sir Ddinbych ) is a principal area in north-east Wales. The administrative headquarters is located in Ruthin. The largest cities are Rhyl ( 25,000 inhabitants) and Prestatyn (15,000 inhabitants), both of which lie on the coast, Ruthin, however, has only about 5,000 inhabitants.

Denbighshire is also one of the thirteen traditional counties of Wales, has as such but other limits than the present Principal Area.

Administrative history

Denbighshire, one of the thirteen traditional counties of Wales, until 1974, was a Welsh administrative county. The administrative county of Denbighshire in 1974 abolished and divided among the three Districts Colwyn, Wrexham Maelor and Glyndŵr of the newly formed county of Clwyd. In the administrative reform of 1996 Clwyd and its Districts were dissolved. For the majority of the District Glyndŵr and from the District Rhuddlan a new Principal Area Denbighshire was formed. Denbighshire has once again reflecting the status of a County.