1959 Soviet census

[6] The deficit of men to women in the total Soviet population massively increased between 1939 and 1959, in large part due to World War II.

[6] The Soviet Union acquired some additional territories (after its 1939 census) in 1939–1945 in what is now Ukraine, Belarus, Moldova, the Baltic republics, Karelia, Tuva, and Kaliningrad Oblast.

[8][9] Ethnic Russians still made up a majority of the Soviet population in 1959,[4] but their percentage was smaller than in 1939 (again, partly due to the acquisition of mainly non-Russian territories in 1939–1945).

[5] Despite the acquisition of additional territories between these censuses, the Soviet Jewish population in 1959 (almost 2.3 million) was only about 75% of what it was in 1939, at least in large part due to the Holocaust.

[6] The Central Asian and Caucasian Soviet Socialist Republics experienced large population increases between 1939 and 1959 despite the fact that they did not acquire any new territories during this time period.