Following the post-2010 Census redistricting process, the Census Bureau collected congressional district boundaries from all states. These were the boundaries in effect for the 2012 election cycle.

These maps show the change in the number of seats in the U.S. House of Representatives apportioned to each state between 2000 and 2010.

The 113th Congressional District Summary File and Demographic Profile contain the data compiled from the questions asked of all people and about every housing unit in the 2010 Census. Population items include age, sex, race, Hispanic or Latino origin, household relationship, household type, household size, family type, family size, and group quarters. Housing items include occupancy status, vacancy status, and tenure (whether a housing unit is owner-occupied or renter-occupied).

The files contain subject content identical to that shown in the 2010 Census Summary File 1 and the 2010 Census Demographic Profile. The Demographic Profile is available at data.census.gov. The Summary File is available on our FTP site or at data.census.gov

These BEFs are the whole 2010 census tabulation block representations of the plans as submitted by the states to the U.S. Census Bureau. The .ZIP file contains a national block equivalency file and individual state files. The fields in these files should be imported as text to preserve leading zeros.

In instances where plans included split 2010 Census tabulation blocks, the Census Bureau requested that the state assign the whole block to one district for the purpose of tabulating data. These block equivalency files contain the whole block tabulation plan. The Census Bureau's maps and TIGER/Line shapefiles depict the correct location of the boundary (splits tabulation blocks). A listing of those blocks split in the states' official plans, and which district the population of these blocks is tabulated to, is also provided. Only one state--Kentucky--split blocks in their 113th Congressional District plan.

These shapefiles were released as official TIGER/Line Shapefile products. This version of the TIGER/Line Shapefiles include the 113th Congressional District boundaries by state and as a national file, the State Legislative Districts (2012 election cycle), and the supporting 2010 Census geography. The congressional and state legislative district boundaries were the official boundaries as submitted by the state liaisons in Phase 4 of the Redistricting Data Program, including any split 2010 census tabulation blocks.

The files for the 113th Congressional and 2012 State Legislative Districts are identified by their abbreviation within the file name: "cd113" for the 113th congressional districts; "sldu" for the state legislative districts - upper house; and "sldl" for the state legislative districts - lower house.

The congressional district map suite includes three map types (national, state-based, and congressional district-based) that depict the congressional districts in effect for the 113th Congress of the United States (January 2013-2015). 

The 113th Congressional District Relationship Files provide simple relationships between the 113th Congressional Districts and other 2010 Census tabulation geography including American Indian areas, counties, county subdivisions, census tracts, places, school districts, urban/rural population and land area, and ZIP Code Tabulation Areas.