The Aarberg District was an administrative district of the canton of Bern, Switzerland. Its capital was the town of Aarberg. The district contained 12 municipalities covering an area of 153km²: CH-3270 AarbergCH-3282 Bargen CH-3257 GrossaffolternCH-3283 KallnachCH-3273 KappelenCH-3250 LyssCH-3045 MeikirchCH-3283 Niederried bei KallnachCH-3271 RadelfingenCH-3255 RapperswilCH-3054 SchüpfenCH-3267 Seedorf