The Census Bureau has finished releasing the 2010 Census Redistricting Data (P.L. 94-171) to each of the 50 states, DC, and PR. The Census is required by law to provide this dataset to each state within one year of the count so that states can redraw their legislative district boundaries based on population change.
The redistricting dataset provides basic population data broken down by race, Latino / Hispanic origin, and adult population (18 years and older) and basic housing data by occupancy status (total units occupied and vacant). Data is provided for most geographic summary levels (states, counties, places, census tracts, census block groups) but not all (no PUMAs, ZCTA/ZIP Codes or metro areas).
The easiest place to get basic data for each state, with summaries by counties and the largest cities, is via the Redistricting Data Press Kits. On the state pages you can download an Excel file for the state, along with static maps showing population and population change by county. A link to an interactive population map for the state is also provided
To access the full datasets for all the different geographies in the state, you’ll have to visit the new version of the American Factfinder. Since the interface is a little daunting, they’ve created a video tutorial that shows you how to get the data. For more info about the dataset, visit the 2010 Redistricting Data site.
A large bulk of the 2010 Census will be released in Summary File 1 (SF1) between June and August of 2011. For many of the census or demographic questions we receive (particularly concerning neighborhood data in NYC), you’ll still want to continue to send people to the most current release of the American Community Survey via the original version of the American Factfinder.