 The municipality is located between the Aare and Murg rivers and the heights known as the Höchi.It consists of the village sections of Dorf, Ägerten, Hubel, Birch and Einschlag and the hamlets of Ober-Wynau und Ober-Murgenthal.On 31 December 2009 Amtsbezirk Aarwangen, the municipality's former district, was dissolved.