Kent, Ohio , Kent State University. Noisy and prolific little buggers and a curse to those who feed birds. There are black squirrels in both towns. If my memory serves there were any number of banded areas depicted on the map throughout the northern midwest. Well I actually have all three colors in my yard though black is more prevalent.
Black squirrels are the 'normal color' of squirrels in Ontario and Quebec.
There are some greys, and some in-between, but black squirrels are VERY common here. I have heard of the black squirrel from a friend who first saw them in a little town in Fla. years a few years ago. They thought they had escaped during the hurricane that destroyed part of the zoo there. A few minutes ago we saw one down the road in our town , and it was a weird experience. There are black squirrels in Norwalk, Ohio.