This document is just a placeholder for working on examples of combining Census data with Tigris map files. This version is based on an example by Kyle Walker.
This map shows median household income by Census tract for New Haven County.
This is based on a sample done as part of The American Community Survey. Click on a tract and it will show the median household income for that tract plus the 90% marin of error. It will also show the percentage of persons in poverty and the number of households and the number of persons. (All of these are estimates based on the sample in The American Community Survey.)
This map shows median household income by Census tract for Washington County in New York.