The Catholic part of the population has always belonged to the parish of Bischofszell. Reformed services were held at the castle chapel by 1667 by the Gonzenbach family for the village. The Reformed chapel became a filial church to the parish church in Bischofszell in 1861. Then, in 1886 a Reformed church was built in the village. The Brunschweiler family, who owned a large factory in town, were active in the early 19th Century Evangelical Baptist movement, which they encouraged to grow in the town. In 1880 about 10% of the inhabitants belonged to this church, and currently there is still a "Bund Freier Evangelischer Gemeinde" (a type of free church) community in Hauptwil