Derllys is one of the hundreds of Carmarthenshire, located in the west of the county, adjacent to the border with Pembrokeshire. It is bounded to the south-east by Kidwelly Hundred; to the north by Elvet Hundred; and to the west by Pembrokeshire. It had a population of 13,992 in 2011.
It comprises the following ancient parishes:
*: Extends into Pembrokeshire.
|Hundreds of Carmarthenshire|