Redistricting Data

Data

2010 Census Block Assignment Files

The 2010 Census Block Assignment Files and Name Look-up tables are now being posted, by state, as they are delivered to the states. These files are intended for data users who want to know which blocks make up a specific geography and/or those who wish to use the demographic data without using the TIGER/Line shapefiles. The Block Assignment Files are being generated for the following geographies:

• Congressional Districts
• State Legislative Districts
• Voting Districts
• School Districts
  • Elementary
  • Secondary
  • Unified
• Incorporated Places + Census Designated Places
• American Indian/Alaska Native/Hawaiian Homeland Areas

There is one Name Look-up table generated for each level of geography with the exception of the Incorporated Place + Census Defined Place table. For that geography there are two Name Look-up tables generated, one for Incorporated Places and another for Census Defined Places.

2010 Census Block Relationship Files

The U.S. Census Bureau's Geography Division has produced 2010 Census Block Relationship Files which include crosswalk files, by state, between Census 2000 tabulation blocks and 2010 Census tabulation blocks. These files are available now on the 2010 Block Relationship File web page.

2010 Census Tract Relationship Files

The U.S. Census Bureau's Geography Division has produced 2010 Census Tract Relationship Files which include crosswalk files, by state, between Census 2000 Census Tracts and 2010 Census Tracts. These files are available now on the 2010 Tract Relationship File web page.

2010 Census Block Counts

A table showing the number of Census 2000 blocks, Census 2010 blocks, and the change in number between the two decennials. Tallies of Census Blocks by State or State Equivalent.

Please call the Census Redistricting Data Office at (301) 763-4039 should you have any questions.