Russian Empire census

The Russian Empire census, formally the First general census of the population of the Russian Empire in 1897, was the first and only nation-wide census performed in the Russian Empire. The census recorded demographic data as of 9 February 1897 [O.S. 28 January]; with a population of 125,640,021, it made Russia the world's third-most populated country at the time, after the British and Qing empires. Although the census was performed in most of the empire, no enumeration was done in the Grand Duchy of Finland.