 It consists of the linear village of Rütschelen with the village sections of Dorf, Flösch, Wil and Spiegelberg, the new development of Berg and scattered farm houses.On 31 December 2009 Amtsbezirk Aarwangen, the municipality's former district, was dissolved.On the following day, 1 January 2010, it joined the newly created Verwaltungskreis Oberaargau.