It is situated in the northern part of the county, bounded on the north by Herefordshire; on the east by the hundreds of Skenfrith, Raglan, and Usk; on the south by Wentloog hundred; and on the west by Wentloog and Brecknockshire.
The hundred comprises a highly diversified tract of country where hills, valleys, rivers and streams display an endless variety of features. To the north it shares the verdant landscape with that of Herefordshire whereas on the west it takes on the abrupt character of the rugged district of southern Brecknockshire. To the south and south-west it comprises a portion of the former mining country. This hundred is watered by the rivers Monnow, Usk and Gavenny with numerous minor streams. It is the third-most populous of Monmouthshire's hundreds, with a population of 82,587.
It contains the following ancient parishes:
- Abergavenny (including Lloyndu hamlet)
- Llanarth (Llanarth hamlet)†
- Llanfihangel Crucorney (Llanfihangel hamlet)‡
- Llangattock Lingoed
- Llanthewy Rytherch
- Llanthewy Skirrid
- Llantilio Pertholey
- Llanfair Kilgeddin
- Llanvihangel Crucorney
*: Fwthog and Bwlch Trewyn are detached parts of Ewyas Lacy, Herefordshire.
†: Clytha hamlet in Raglan hundred.
‡: Penbidwal hamlet in Skenfrith hundred.
|Hundreds of Monmouthshire|