The focus of the hamlet is the Church and Parish of St. Cynyw.
The parish of Llangynyw had a population of 551 when the 1801 census was taken, and 539 by the 2001 census.
- LLANGYNIEW, National Gazetteer 1868 & Lewis 1833 transcriptions, Genuki
- Photographs of Llangynyw and the surrounding area, Geograph
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