Mapping from the Census Bureau Website

The data look reasonable for States, but the county map is too sparse: A more informative geography is Public Use Microdata Areas (PUMAs). The gray areas are PUMAs that do not have enough cases. Recall that the universe is the population < 18. The black areas on the maps are metropolitan areas where many counties have multiple PUMAS within the ... ................
................

In order to avoid copyright disputes, this page is only a partial summary.