Redistricting Data

Data

2010 Census Redistricting Data [P.L. 94-171] Summary Files

2010 Census [P.L. 94-171] Summary File Background and Resources

The 2010 Census Redistricting Data [P.L. 94-171] Summary Files were posted, by state, from February 3rd through March 24th of 2011. The summary file tables contain tabulations for:

• Table P1 - Race
• Table P2 - Hispanic or Latino, and not Hispanic or Latino by Race
• Table P3 - Race for the Population18 Years and Over
• Table P4 - Hispanic or Latino, and not Hispanic or Latino by Race for the Population 18 Years and Over
• Table H1 - Occupancy Status (Housing)

The Tech Tips page of this website contains many resources to assist data users when working with the [P.L. 94-171] Summary Files including: Microsoft Access database shells with instructions, SAS database shells, and guidance on constructing a GEOID for joining data to TIGER/Line shapefiles.

The 2010 Census Redistricting Data [P.L. 94-171] Summary File Technical Documentation is now available in English P.L. 94-171 Technical Documentation [PDF] 3.75 MB and in Spanish (for Puerto Rico) P.L. 94-171 Technical Documentation- Spanish [PDF] 3.82 MB

The 2010 Census Redistricting Data [P.L. 94-171] Summary File data are available through the American FactFinder and via FTP download. Due to session constraints in American FactFinder, users who want to download all blocks within a state should use the FTP site for their files.

2010 Census [P.L. 94-171] Summary File Data

The 2010 Census [P.L. 94-171] Summary Files are now available for all 50 states, the District of Columbia, and Puerto Rico.

• Alabama FTP or AFF
• Alaska FTP or AFF
• Arizona FTP or AFF
• Arkansas FTP or AFF
• California FTP or AFF
  • NOTE: to view California errata click here. [PDF] 54 KB
• Colorado FTP or AFF
• Connecticut FTP or AFF
  • NOTE: to view Connecticut errata click here. [PDF] 54 KB
• Delaware FTP or AFF
• District of Columbia FTP or AFF
• Florida FTP or AFF
• Georgia FTP or AFF
• Hawaii FTP or AFF
• Idaho FTP or AFF
• Illinois FTP or AFF
• Indiana FTP or AFF
• Iowa FTP or AFF
• Kansas FTP or AFF
• Kentucky FTP or AFF
• Louisiana FTP or AFF
• Maine FTP or AFF
• Maryland FTP or AFF
  • NOTE: Pursuant to Maryland law passed in 2010, the Maryland census data must be adjusted for purposes of creating congressional, state legislative, and local districting plans. Generally, the law requires that the census data must be adjusted to reassign Maryland residents in correctional institutions to their last known address and to exclude out-of-state residents in correctional institutions from redistricting. The State intends to post the adjusted data on the Internet this spring. For further information contact the Maryland Department of Planning at 410-767-4500 or the Maryland Department of Legislative Services at 301-970-5200/410-946-5200 or visit their websites.
  • MD Department of Planning - Redistricting
• Massachusetts FTP or AFF
• Michigan FTP or AFF
• Minnesota FTP or AFF
• Mississippi FTP or AFF
  • NOTE: to view Mississippi errata click here. [PDF] 54 KB
• Missouri FTP or AFF
• Montana FTP or AFF
• Nebraska FTP or AFF
• New Hampshire FTP or AFF
  • NOTE: to view New Hampshire errata click here. [PDF] 54 KB
• New Jersey FTP or AFF
• New Mexico FTP or AFF
• New York FTP or AFF
• Nevada FTP or AFF
• North Carolina FTP or AFF
• North Dakota FTP or AFF
• Ohio FTP or AFF
• Oklahoma FTP or AFF
• Oregon FTP or AFF
• Pennsylvania FTP or AFF
• Rhode Island FTP or AFF
• South Carolina FTP or AFF
• South Dakota FTP or AFF
• Tennessee FTP or AFF
• Texas FTP or AFF
• Utah FTP or AFF
• Vermont FTP or AFF
• Virginia FTP or AFF
  • NOTE: to view Virginia errata click here. [PDF] 75 KB
• Washington FTP or AFF
  • NOTE: to view Washington errata click here. [PDF] 54 KB
• West Virginia FTP or AFF
• Wisconsin FTP or AFF
• Wyoming FTP or AFF
• Puerto Rico FTP or AFF

As each state became available, the Census Bureau's Public Information Office produced and issued a press release. These announcements include custom maps and tables. To view these press releases, please go to the Redistricting Data, First Look at Local 2010 Census Results page and look under the section "Which States Have Been Released".

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