Different oblasts (the largest administrative units of Ukraine) are not equal in size and population. For illustration below shows a map of population density of the country by oblasts. It should be noted that it does not separate rural and urban population.
Donetsk region has the highest population density. Also high population density is in oblasts of Western Ukraine near Carpathian mountains, and Dnipropetrovsk Oblast.
This picture shows how demographic map changed for the past 25 years. The smallest decline in population was in Western Ukraine, Odessa Oblast and Crimea. North of the country, Kirovohrad Oblast and Donbass has the largest decreasing of population density.
Let’s compare previous map with one, that shows changes only for the last decade (excluding long economic crisis of 1991-2001). It is evident that regional differences in the dynamics of change in population density remained unchanged.