Wangen District
Wangen District is one of the 26 administrative districts in the canton of Bern, Switzerland. Its capital is the municipality of Wangen an der Aare.
From 1 January 2010, the district lost its administrative power while being replaced by the Oberaargau administrative district, whose administrative centre is Wangen an der Aare. Since 2010, it remains therefore a fully recognised district under the law and the Constitution of the Canton of Berne.
The district has an area of 129 km² and consists of 23 municipalities.
| Municipality | Population | Area |
| Attiswil | 1,325 | 7.7 |
| Berken | 50 | 1.4 |
| Bettenhausen | 496 | 2.0 |
| Bollodingen | 233 | 2.0 |
| Farnern | 208 | 3.7 |
| Graben | 299 | 3.2 |
| Heimenhausen | 421 | 3.2 |
| Hermiswil | 94 | 23.4 |
| Herzogenbuchsee | 6,719 | 9.8 |
| Inkwil | 658 | 3.4 |
| Niederbipp | 3,850 | 17.5 |
| Niederönz | 1,470 | 2.8 |
| Oberbipp | 1,544 | 8.5 |
| Ochlenberg | 607 | 12.1 |
| Rumisberg | 493 | 5.2 |
| Seeberg | 1,363 | 15.8 |
| Thörigen | 1,027 | 4.5 |
| Walliswil bei Niederbipp | 224 | 1.4 |
| Walliswil bei Wangen | 578 | 3.1 |
| Wangen an der Aare | 2,015 | 5.2 |
| Wangenried | 398 | 2.9 |
| Wiedlisbach | 2,141 | 7.5 |
| Wolfisberg | 182 | 2.4 |
- In 2009, the municipalities of Wanzwil and Röthenbach bei Herzogenbuchsee became part of the municipality of Heimenhausen
- In 2008 Oberönz became part of Herzogenbuchsee