Northern Krai
On July 15, 1929, the uyezds were abolished, the governorates merged into Northern Krai, and Nyandomsky District was established among others. It became a part of Nyandoma Okrug, one of the five in Northern Krai. In 1930, the okrug was abolished, and the district was subordinated to the central administration of Northern Krai. For a short period in the 1930s, the district absorbed some of the areas of abolished Konoshsky District, but in 1935 Konoshsky District was reestablished, and the areas were ceded to it. In 1936, the krai itself was transformed into Northern Oblast. In 1937, Northern Oblast was split into Arkhangelsk Oblast and Vologda Oblast. Nyandomsky District remained in Arkhangelsk Oblast ever since.