Even if you look at Germany, you will see huge regional differences. If you look at the map of the positive tested, you can clearly see spikes in the huge cities (Berlin, Hamburg, München) and in densely populated regions. You can also still see that the infection density is higher around the places of initial infections (Bavaria for example, many skiing tourists who got infected in Austria/Italy). On the other side, there are less dense populated regions with a noticeably smaller infection rate.