The Aarberg district in the Canton of Bern with capital Aarberg contains 12 Municipalies covering 153 km²:
- CH-3270 Aarberg
- CH-3282 Bargen BE
- CH-3257 Grossaffoltern
- CH-3283 Kallnach
- CH-3273 Kappelen
- CH-3250 Lyss
- CH-3045 Meikirch
- CH-3283 Niederried bei Kallnach
- CH-3271 Radelfingen
- CH-3255 Rapperswil BE
- CH-3054 Schüpfen
- CH-3267 Seedorf BE