The decennial census count has major implications for reapportionment, redistricting, and funding. Groups across America are conducting outreach campaigns to ensure that everyone is counted on April 1, 2010.
The Census Bureau has developed a list of "Hard-to-Count" (HTC) census tracts based on underlying demographic and socio-economic indicators. These are the areas where community-based "get out the count" efforts should be focused. Nearly one-fifth of the population lives in hard-to-count census tracts.
For details on the HTC methodology employed by the Census Bureau, see this PDF document or this one-page summary. Source data is available from the Census Bureau in an Excel spreadsheet.
Some state agencies have web pages with maps depicting HTC tracts -- see, for example, Maryland, Pennsylvania, Michigan, and Indiana. You can also download PDF maps by county from the Census Bureau showing census tract boundaries via this directory.
To help in a small way, we've developed an interactive map that highlights the Hard-to-Count tracts.
To access the interactive map, click the arrow icon or text link below.
Hard-to-Count 2010 Mapper
Source: 2010 Enhanced Planning Database