 Catholics belong to the Catholic parish of Untergruppenbach and Methodists to the parish of Abstatt-Happenbach.After the 1904 fire, numerous Jugendstil buildings were erected in the village of Ilsfeld.The Protestant church of St. Bartholomew on the Spreuerberg hill, designed by Paul Schmohl, incorporates a late Gothic choir and portions of the tower and west end of the former church and has Jugendstil decorations by Josef Zeitler.