Census 2010 - Mapping the Hard to Count
The City University of New York (CUNY) has released an interactive mapping site to pinpoint census tracts that the U.S. Census Bureau considers difficult to enumerate, and display detailed demographic and housing characteristics that the Census Bureau believes will create challenges to achieving an accurate count in certain communities. The site allows census advocates to tailor their activities and address specific barriers, such as language difficulties or low educational attainment.
The site uses the Google Maps API for Flash and features interactive maps at the state, metro, county, and tract level, along with detailed statistics for each area. You can search the map in various ways, and also add overlays showing congressional districts, ZIP Codes, tract-level maps of 2000 census mail return rates, and recent foreclosure risk.
The site maps the "hard to count" population nationwide (based on the Census Bureau's analysis) to help local and national organizations target their outreach efforts for the 2010 Census and customize messages to communities at risk of being under counted.
Cynergy Systems Map - Google Maps based interface for viewing census data sets.