The parish of Kleinich with around 750 inhabitants consists of eight former independent villages: Kleinich, Oberkleinich, Thalkleinich, Fronhofen, Götzeroth, Emmeroth, Pilmeroth and Ilsbach. The places probably originated from individual farmsteads and Celtic origins. The most important find from Celtic times is the cemetery belonging to the Vicus Belginum. Kleinich was first mentioned in a document in 1220.