République socialiste soviétique carélo-finnoise
In March 1940 Yaskinsky District with the administrative center in Jääski was established, and Jääski obtained work settlement status. The district was a part of the Karelian Autonomous Soviet Socialist Republic, after March 31, 1940 of the Karelo-Finnish Soviet Socialist Republic. On November 24, 1944, Yaskinsky District was transferred from Karelo-Finnish Soviet Socialist Republic to Leningrad Oblast. On October 1, 1948 the district was renamed Lesogorsky, and on January 13, 1949 Jääski was renamed Lesogorsky. On December 9, 1960 Lesogorsky District was abolished and merged into Vyborgsky District.