Öja is an island in the
Gulf of Bothnia
The Gulf of Bothnia (; ; ) is divided into the Bothnian Bay and the Bothnian Sea, and it is the northernmost arm of the Baltic Sea, between Finland's west coast ( East Bothnia) and the northern part of Sweden's east coast ( West Bothnia an ...
in
Kokkola
Kokkola (; , ) is a town in Finland and the regional capital of Central Ostrobothnia. It is located on the west coast of the country, on the Gulf of Bothnia. The population of Kokkola is approximately , while the Kokkola sub-region, sub-region h ...
(Karleby) municipality, Finland. It has an area of . Öja is also the name of a settlement on the island with a population of 800.
Öja was an independent
Finnish municipality until 1969, when it became part of
Kaarlela. Kaarlela became part of Kokkola in 1977.
Populated places disestablished in 1969
Former municipalities of Finland
Kokkola
Finnish islands in the Baltic
Landforms of Central Ostrobothnia
{{WesternFinland-geo-stub