In my European country (Switzerland), it's mandatory to notify the government whenever you move. There is thus no universal census and also no voter registration. There's still subsampled surveys though, for e.g. economic data, that might come by mail (addressed to you by name, because they know where you live!).
Just like in the USSR
As I understand it, in the Soviet Union you had to get government permission before moving. Whereas here the right to move is guaranteed, you just have to update your details.
Perhaps on that one axis. On the other hand Switzerland is probably about as far opposed as the USSR as you can get.