Llanfyllin Hundred

Llanfyllin Hundred in Montgomeryshire

Llanfyllin Hundred is one of the hundreds of Montgomeryshire, located in the north of the county, adjacent to the borders with Denbighshire and Merionethshire. It is bounded to the north-east by Denbighshire; to the north-east by Shropshire; to the east by Deythur; to the south by Mathrafel Hundred; and to the west by Merionethshire. It had a population of 4,429 in 2011.

It comprises the following ancient parishes:

• Hirnant
• Llanfihangel-yng-Ngwynfa
• Llanfyllin
• Llanwyddin
• Meifod (Main, Dyffryn, Nantymeichiad, Penarth and Teirtref townships)^*
• Pennant
• Llangynog
• Llanrhaeadr-ym-Mochnant (part)^†

^*: Remainder in Deythur and Pool Hundreds.
^†: Partly in Denbighshire.