A website with historical demographic data for Eastern Europe

Futurist

Ad Honoris
May 2014
22,239
SoCal
Excellent information! Thank you sir.
No problem! :) Yeah, Eastern Europe has had a lot of censuses during the 20th century and we can see the detailed results of a lot of them on that website.

For the record, this website contains a lot of demographic data from various Soviet censuses (including very possible some demographic data that isn't actually found in the link in my original post here)--but you're going to need to use Google Translate to understand it if you don't actually read Russian: