The results of the Russian Census of 2010 lay on the table several topics requiring further discussion. Prerequisites for this discussion are the change of the administrative-territorial structure of Russia after the reform of municipal government in 2006 and the amendments to the Census Law made prior to Census 2010. During 2002-2010 increase in rural population was almost twice higher than that in urban areas: +11% and +6.3% correspondingly. Rural population increased up to 30-50% in some municipalities, while changes of the urban population were fairly minor or even negative over the intercensal period. This significant rise in the rural population could be related with changes concerning data capture of the population living in collective households. This ‘non-demographic’ factor distorts denominator for demographic rates for municipalities, affects on an allocation budget funds depending on the population in the municipality.