Light blue dots indicate households earning under $30k and red dots are for households over $200k. Our house is smack in the middle of census tract 8129, with 1706 households. 10% are in the lowest income group, 10% in the highest and 28%--the biggest group--in the $100-$149k range.
When it comes to race, my tract is 77% white, 13% Black, 5% Hispanic and 4% Asian.
I knew Oak Park was a lot different from its neighbors to the south (Cicero and Berwyn) and west (Chicago's Austin neighborhood), but these scaled-out maps (about 2-3 miles across) show how dramatic the differences are in income and especially race. The highway through the middle of the maps is I-290. I live about 3 blocks north of it in central Oak Park.