Akers Herred had 6,375 inhabitants in 1769, and this number increased to 7,600 in 1801. Aker was established as a municipality on 1 January 1838 (see formannskapsdistrikt).
Akers Herred's population grew from 6,375 in 1769 to 7,600 by 1801. In 1838, the area became an official municipality.