Oulunkaari is a subdivision of
Northern Ostrobothnia
North Ostrobothnia ( fi, Pohjois-Pohjanmaa; sv, Norra Österbotten) is a region of Finland. It borders the Finnish regions of Lapland, Kainuu, North Savo, Central Finland and Central Ostrobothnia, as well as the Russian Republic of Karelia. ...
and one of the
Sub-regions of Finland since 2009.
{{coord, 65.3664, N, 26.9812, E, source:wikidata-and-enwiki-cat-tree_region:FI, display=title
Sub-regions of Finland
Geography of North Ostrobothnia