The district of Wangen was one of the 26 districts in the canton of Bern, Switzerland. It had an area of 129 km².
| Municipality | Population (Jan 2005) | Area (km²) |
|---|---|---|
| Attiswil | 1,379 | 7.7 |
| Berken | 52 | 1.4 |
| Bettenhausen | 498 | 2.0 |
| Bollodingen | 224 | 2.0 |
| Farnern | 214 | 3.7 |
| Graben | 313 | 3.2 |
| Heimenhausen | 415 | 3.2 |
| Hermiswil | 110 | 23.4 |
| Herzogenbuchsee | 5,470 | 6.8 |
| Inkwil | 643 | 3.4 |
| Niederbipp | 3,909 | 17.5 |
| Niederönz | 1,441 | 2.8 |
| Oberbipp | 1,431 | 8.5 |
| Oberönz | 882 | 3.0 |
| Ochlenberg | 620 | 12.1 |
| Röthenbach bei Herzogenbuchsee | 338 | 2.1 |
| Rumisberg | 478 | 5.2 |
| Seeberg | 1,421 | 15.8 |
| Thörigen | 1,025 | 4.5 |
| Walliswil bei Niederbipp | 237 | 1.4 |
| Walliswil bei Wangen | 569 | 3.1 |
| Wangen an der Aare | 1,968 | 5.2 |
| Wangenried | 383 | 2.9 |
| Wanzwil | 223 | 0.6 |
| Wiedlisbach | 2,202 | 7.5 |
| Wolfisberg | 203 | 2.4 |
