Tosnensky District
On August 1, 1927, the uyezds were abolished and Kolpinsky District, with the administrative center in the town of Kolpino, was established. The governorates were also abolished, and the district was a part of Leningrad Okrug of Leningrad Oblast. Ulyanovka became a part of Kolpinsky District. On July 23, 1930, the okrugs were abolished as well, and the districts were directly subordinated to the oblast. On August 19, 1930 the district was abolished. Ulyanovka became a part of newly established Tosnensky District.