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Congressional district name datasets

Source: R/cd-names.R
info.Rd

Bundled tables of descriptive geographical names for congressional districts. Each dataset is a 435-row table for one Congress. Use cd_names() to select and stack tables by year or Congress number.

Format

Each object is for a particular Congress. The year indicates the start of that Congress. Each observation is a congressional district, which contains a unique descriptive name.

cong

Congress number, such as 113 for the Congress beginning in 2013.

cd

District code. Each row is a two-letter abbreviation for the state followed by a dash, and the district number padded with zeros to the left to be of length 2. At-large districts like Delaware are given a "-01" for the district number.

cd_description

The unique descriptive name for the district code. Names in info_2013 through info_2025 are taken from cd_info in the ccesMRPprep package (see Source for full citation). Names from earlier years (2005–2011) were manually coded in Daily Kos style. info_2027 was coded in October 2026 by visual inspection of Wikipedia pages and then checked via GPT using the tigris v2.3.0 shapefiles.

Source

2005-2011 descriptive names: Zachary Donnini.

Historical FL and NC corrections for the 113th, 114th, and 117th Congresses: the 2026-10-corrections tab in https://docs.google.com/spreadsheets/d/1D6out76Jblwvs9bwhb-XQM3ctyp2UjnGrttsqGlX_tY/edit.

Daily Kos, "2008, 2012 results for districts used in 2012, 2014" https://docs.google.com/spreadsheets/d/1xn6nCNM97oFDZ4M-HQgoUT3X4paOiSDsRMSuxbaOBdg/edit

Daily Kos, "2008, 2012, & 2016 results for districts used in 2018." https://docs.google.com/spreadsheets/d/1zLNAuRqPauss00HDz4XbTH2HqsCzMe0pR8QmD1K8jk8/edit

Daily Kos, "2012, 2016 & 2020 presidential election results for congressional districts in 2020", https://docs.google.com/spreadsheets/d/1XbUXnI9OyfAuhP5P3vWtMuGc5UJlrhXbzZo3AwMuHtk/edit

Daily Kos, 2020 presidential election results by later congressional districts:

Daily Kos, congressional district geography and most populous places:

PA 2016 descriptive names: Shiro Kuriwaki and Lara Putnam. PA 2027 descriptive names: Zoya Ahmer and Jens Wiederspohn

2027 manual district names: https://docs.google.com/spreadsheets/d/1uxD-dKP1DBj_JLM1dXt-K2r8bHhU6o8IIIXCSFcEwaM/edit

Also see Cha, Kuriwaki, and Snyder, 2024, "Candidates in American General Elections", doi:10.7910/DVN/DGDRDT , Harvard Dataverse, for congressional candidate's (instead of President's) vote totals.

See also

cd_names() to load and stack one or more Congresses. See ccesMRPprep's cd_info documentation for upstream sources, district-boundary history, and related presidential election data. Its dataset years refer to election maps; the info_* years here refer to the start of a Congress.

Author

Zachary Donnini, Shiro Kuriwaki, Daily Kos, Downballot

Examples

head(info_2005)
#> # A tibble: 6 × 3
#>    cong cd    cd_description       
#>   <dbl> <chr> <chr>                
#> 1   109 AK-01 All of Alaska        
#> 2   109 AL-01 Southern Alabama     
#> 3   109 AL-02 Southeast Alabama    
#> 4   109 AL-03 East-central Alabama 
#> 5   109 AL-04 North-central Alabama
#> 6   109 AL-05 Northern Alabama