During the 1926 census, the territory of the Azerbaijan SSR was 85,968 km2, the actual population was 2,314,571 (1,212,859 men, 1101712 women).
During the census, there were 35 cities and 5788 rural settlements in the territory of the Azerbaijan SSR.
[2] The last census of the Azerbaijan nation was conducted in USSR with Turkish name on January 6, 1937.
[4] According to the Census of 1959, the number of Azerbaijanis was 2 494 381 which was 67.46% of the total population in Azerbaijan SRR.
On April 13–22, 2009, the second census of the population in the Republic of Azerbaijan was held within 10 days.