Information at your finger tips: Exploring the US Census Data

Figure 1: United States, Year 2000 Median Household Income – on the U.S. National Level plot there are high income clusters on the East Side of Central Park, and in suburbs of Chicago but not its downtown neighborhood. In the San Francisco area we can identify Silicon Valley; the income in this small area is significantly greater than average (Data=Block Level; Global Shape=Cartogram based on Household Distribution).