- 30,836 inhabitants (2025)
- 1,555.8 km² area
Hierarchy
Child units
Mariehamn
Central Locality
Mariehamn
Municipality
Jomala
Municipality
Finström
Municipality
Lemland
Municipality
Saltvik
Municipality
Hammarland
Municipality
Godby
Settlement
Sund
Municipality
Eckerö
Municipality
Föglö
Municipality
Geta
Municipality
Vårdö
Municipality
Brändö
Municipality
Lumparland
Municipality
Ödkarby
Settlement
Kumlinge
Municipality
Lemströms kanal
Settlement
Kökar
Municipality
Sottunga
Municipality
Also written Ahvenanmaan maakunta.
Admin