A notable local landscape feature is Y Garn Goch with two Iron Age hill forts.

[2] Llangadog was the administrative centre of the commote of Perfedd and had a castle, destroyed in 1204.

Although the borough declined in the Middle Ages, Llangadog retained its market, which was frequented by drovers into the 19th century.

After railway access was ceased in the late 1970s, the creamery continued to operate until 2005, when it closed with the loss of 200 jobs.

According to the latest Estyn inspection report of the local primary school, Ysgol Gynradd Llangadog, 42% of statutory school ages pupils came from Welsh-speaking households.