What layers are found in the earth’s interior?

I attached a picture of the layers of the earth.  They are the:
Crust (which isn't really the interior)
Mantle
Outer Core
Inner Core

Master planned communities outside of chicago. note: population density means people living in an area per square mile. chicago, an urban and highly populated area has a much more higher density than a desert, amish community, settlement, or nomadic region.