The main role of Llanarthne Community Council is to be representative, gathering the views of local people and relaying them to the local authorities and other bodies.
The first meeting of Llanarthney Parish Council was held on 4th December 1894 in the Schoolroom of Tabernacle Chapel, Cefneithin. The parish area at that time included: Capel Dewi, Penrhiwgoch, Maesybont, Cefneithin, Foelgastell, Drefach and Gorslas.
Nowadays there are open meetings held on the second Tuesday of the month from October-May in Llanarthne Primary School, and June, July and September at The Old School, Capel Dewi to report on matters of local interest.