Population 3.680 (1. Jan. 2017) Borgarbyggd includes the town of Borgarnes (pictured) as well as the following districts: Kolbeinsstaðahreppur, Hraunhreppur, Álftaneshreppur, Borgarhreppur, Norðurárdalur, Stafholtstungur, Þverárhlíð, Hvítársíða, Hálsasveit, Reykholtsdalur, Flókadalur, Lundarreykjadalur, Bæjarsveit and Andakíll.