Cayo Hundred is one of the hundreds of Carmarthenshire, located in the north-east of the county, adjacent to the border with Cardiganshire. It is bounded to the south-west by Cathinog; to the south-east by Perfedd; and to the north by Cardiganshire. It had a population of 4,057 in 2011.
It comprises the following ancient parishes:
- Conwil Gaio
- Llandeilo Fawr (Cwmcawrlwyd, Manordeilo, Tachloyan and Rhiwlas)*
- Llandingat (Ystrad)†
- Llanycrwys (Mynachty)‡
*: Remainder in Perfedd and Iscennen hundreds.
†: Remainder In Perfedd hundred.
‡: In Cathinog hundred.
|Hundreds of Carmarthenshire|