Bollodingen

Bettenhausen is a municipality in the Oberaargau administrative district in the canton of Bern in Switzerland. On 1 January 2011, the former municipality of Bollodingen was merged with Bettenhausen.

Thörigen is a municipality in the Oberaargau administrative district in the canton of Bern in Switzerland.

Oberönz was a municipality in the district of Wangen in the canton of Bern in Switzerland. On January 1, 2008, the municipality of Oberönz became part of the municipality of Herzogenbuchsee.

Herzogenbuchsee is a municipality in the Oberaargau administrative district in the canton of Bern in Switzerland. The population is 7055 (2011), counting the villages in the Oberaargau. The traditional name was Buchsi.

Ochlenberg is a municipality in the Oberaargau administrative district in the canton of Bern in Switzerland.

Herzogenbuchsee railway station (German: Bahnhof Herzogenbuchsee) is a railway station in the municipality of Herzogenbuchsee, in the Swiss canton of Bern. It is an intermediate stop on the standard gauge Olten–Bern line of Swiss Federal Railways.

Steinhof is a former municipality in the district of Wasseramt in the canton of Solothurn in Switzerland. It is an enclave in the canton of Bern. The municipality of Steinhof merged on 1 January 2012 into the municipality of Aeschi.

The Oberaargau is the region that encompasses the upper watershed of the Aar River in the canton of Bern in Switzerland. On the north, lie the Jura Mountains, and on the south the hills leading to the Emmental. Administratively, the Oberaargau forms a district within the region Emmental-Oberaargau of the canton of Bern. Historically (until 2009), the Oberaargau comprised the two administrative districts of Wangen and Aarwangen.

Bleienbach is a municipality in the Oberaargau administrative district in the canton of Bern in Switzerland.

Wanzwil is a municipality in the district of Wangen in the canton of Bern in Switzerland. On January 1, 2009, the municipalities of Wanzwil and Röthenbach bei Herzogenbuchsee became part of the municipality of Heimenhausen.

Niederönz is a municipality in the Oberaargau administrative district in the canton of Bern in Switzerland.

Heimenhausen is a municipality in the Oberaargau administrative district in the canton of Bern in Switzerland. On January 1, 2009, the municipalities of Wanzwil and Röthenbach bei Herzogenbuchsee became part of the Municipality of Heimenhausen.