The commune includes the town of Plouénan and the hamlets of Kerlaudy, Pont-Éon, and Lopreden.

The name of the area has appeared in a number of forms including Plebs Lapidea in 884, Plebs Menoen around 1150, Ploebenon in 1277, Plouenouven in 1279, Plebenoen in 1306, Ploe Benoan around 1330, Plebevenan in 1405, Ploebenan in 1467, Ploemenan in 1453, and Ploemenan in 1481.

In 1946, a parents' association[6] (L'Amicale Laïque[7]) was formed to raise funds for the school and children.

At various points during the year, it holds events including the annual kermesse.

[9] L’école Notre Dame de Kérellon[10] is a private school aligned to the Catholic church.