Following the post-2020 Census redistricting process, the Census Bureau collected congressional district boundaries from all states. These were the boundaries in effect for the 2022 election cycle.

This map shows the changes to the number of congressional seats for each state between apportionment based on the 2010 Census and apportionment based on the 2020 Census.

The American Community Survey (ACS) produces data for congressional districts (CDs) annually, as part of the 1-year and 5-year estimates data releases. These data are available at data.census.gov.

These data profiles contain social, economic, housing and demographic statistics for the 118th Congressional Districts from the 2021 American Community Survey (ACS) 1-year estimates. The four data profiles are available through a web-based lookup tool on the ACS website and on the Census Bureau's FTP site. The My Congressional District app has also been updated for the 118th Congress.

These Block Equivalency Files (BEFs) are the whole 2020 Census tabulation block representations of the 118th Congressional District 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 for all states, the District of Columbia, and Puerto Rico. The fields in these files should be imported as text to preserve leading zeros.

In instances where plans included split 2020 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), except for the January 2023 TIGER/Line shapefile release which does not depict the block splits.  A listing of those blocks split in the states' official plans is also provided.

Only one state--Colorado--split blocks in their 118th Congressional District plan. Colorado split one block, 080010096072000, between Congressional District 07 and Congressional District 08. The data for that census block will be tabulated to Congressional District 08.

NOTE: On December 14, 2022, Arkansas officially notified the Census Bureau that there was an error in the 118th Congressional District boundaries they provided for their state. We updated and reposted the 118th Congressional District BEFs with Arkansas’s corrections on December 16, 2022. Please redownload these files if you plan to use Arkansas’s 118th Congressional District file or the national 118th Congressional District file. 

These TIGER/Line products include the 118th Congressional Districts, the 2022 State Legislative Districts, and the supporting 2020 Census geography. They also contain the urban areas defined as of December 29, 2022 and the new county-equivalent planning regions in Connecticut. The congressional and state legislative district boundaries are the boundaries as submitted by the state liaisons in Phase 4 of the Redistricting Data Program.

If the boundary of a congressional or state legislative district splits a 2020 Census tabulation block, the Census Bureau's annual TIGER/Line products will depict the correct location (showing the block split) of the boundary. However, for the TIGER/Line products released in January 2023 only, the shapefiles will show the entire, or whole, block (without splits) as part of the the congressional or state legislative district specified to the U.S. Census Bureau by the state.

The shapefiles for the 118th Congressional and 2022 State Legislative Districts are identified by their abbreviation within the file name: "cd118" for the 118th 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 118th Congress of the United States (January 2023-2025).

The 118th Congressional District Relationship Files provide simple relationships between the 118th Congressional Districts and other 2020 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.