 In August 1941, the territory was re-occupied by Finnish troops, but as part of the wider post-war settlement, it reverted to the Soviets in 1944; it was the second largest territory by area (after Petsamo) ceded by Finland to the Soviet Union following the Continuation War.Within the framework of administrative divisions, Suoyarvi serves as the administrative center of Suoyarvsky District, to which it is directly subordinated.As a municipal division, the town of Suoyarvi is incorporated within Suoyarvsky Municipal District as Suoyarvskoye Urban Settlement.