10.7910/DVN/UPOWMWGiraudy, AgustinaAgustinaGiraudy0000-0002-8405-2195Gonzalez, Guadalupe AndreaGuadalupe AndreaGonzalez0000-0001-6455-8087Huertas-Hernández, SergioSergioHuertas-Hernández0000-0002-2697-3068Urdinez, FranciscoFranciscoUrdinez0000-0003-3333-478XHarvard Dataverse2025Social SciencesSubnational electionsSubnational partiesArgentina subnationalBrazil subnationalMexico subnationalGovernorsGiraudy, AgustinaAgustinaGiraudyAmerican University/Tecnologico de MonterreyAgustina GiraudyAgustinaGiraudyAmerican University/Tecnologico de Monterrey2025-08-272025-11-073719038438134693723408124185646text/tab-separated-valuesapplication/x-rlang-transporttext/tab-separated-valuesapplication/vnd.openxmlformats-officedocument.spreadsheetml.sheetapplication/pdf2.0CC0 1.0The <b>Subnational Executive Elections Database (SEED) (v. 1)</b> compiles data on subnational executive elections in Argentina, Brazil, and Mexico from 1983 to 2024. Produced by the Subnational Politics Project (SPP) team, the database includes information on winning candidates at the subnational level, percentage of votes obtained by the winner, runner-up, and last-place candidates, election date, number of registered voters, valid and invalid votes, number of parties in contest, the effective number of parties (ENP), and other relevant attributes.The codebook for this dataset can be found here: https://doi.org/10.17605/OSF.IO/H96FD