Income inequity is not distributed evenly geographically. Below is a map from brookings found via the Washington Post that shows the differences. The larger circles indicate more inequality between 95th and 20th percentiles. The number is a ratio. This means that the family making 95 percentile (almost the top of earners) in income made 15.8 to 18 times as much as the family at the 20 the percentile (bottom 1/5 of earners) for largest circles.