Electoral precinct-level database for Mexican municipal elections

Abstract This paper introduces a database of electoral precinct-level election returns for Mexican municipal elections between 1994 and 2019. This database includes: (i) electoral precinct-level votes for each electoral coalition, the coalitions of the incumbent mayor and incumbent state governor, a...

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Main Authors: Bruno Calderón-Hernández, Horacio Larreguy, John Marshall, José Luis Pérez-Castellanos
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:Scientific Data
Online Access:https://doi.org/10.1038/s41597-025-04918-9
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author Bruno Calderón-Hernández
Horacio Larreguy
John Marshall
José Luis Pérez-Castellanos
author_facet Bruno Calderón-Hernández
Horacio Larreguy
John Marshall
José Luis Pérez-Castellanos
author_sort Bruno Calderón-Hernández
collection DOAJ
description Abstract This paper introduces a database of electoral precinct-level election returns for Mexican municipal elections between 1994 and 2019. This database includes: (i) electoral precinct-level votes for each electoral coalition, the coalitions of the incumbent mayor and incumbent state governor, and the four most popular political parties; (ii) electoral precinct-level valid and total votes, the number of registered voters, and turnout; (iii) the partisan composition and municipal-level votes of the incumbent and runner-up electoral coalitions from the previous election; and (iv) the partisan composition of the state-level incumbent governor. This paper outlines the organization of this data, its sources, and key variables, and describes the processes used to standardize the data. This database has the potential to support the cross-sectional and longitudinal study of local Mexican elections over two decades using fine-grained precinct-level electoral returns that enable panel and regression discontinuity analyses.
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spelling doaj-art-1990d8575e604fb99534e65ab03087e52025-08-20T02:11:59ZengNature PortfolioScientific Data2052-44632025-04-0112111110.1038/s41597-025-04918-9Electoral precinct-level database for Mexican municipal electionsBruno Calderón-Hernández0Horacio Larreguy1John Marshall2José Luis Pérez-Castellanos3Instituto Tecnológico Autónomo de México, EconomicsInstituto Tecnológico Autónomo de México, EconomicsColumbia University, Political ScienceInstituto Tecnológico Autónomo de México, EconomicsAbstract This paper introduces a database of electoral precinct-level election returns for Mexican municipal elections between 1994 and 2019. This database includes: (i) electoral precinct-level votes for each electoral coalition, the coalitions of the incumbent mayor and incumbent state governor, and the four most popular political parties; (ii) electoral precinct-level valid and total votes, the number of registered voters, and turnout; (iii) the partisan composition and municipal-level votes of the incumbent and runner-up electoral coalitions from the previous election; and (iv) the partisan composition of the state-level incumbent governor. This paper outlines the organization of this data, its sources, and key variables, and describes the processes used to standardize the data. This database has the potential to support the cross-sectional and longitudinal study of local Mexican elections over two decades using fine-grained precinct-level electoral returns that enable panel and regression discontinuity analyses.https://doi.org/10.1038/s41597-025-04918-9
spellingShingle Bruno Calderón-Hernández
Horacio Larreguy
John Marshall
José Luis Pérez-Castellanos
Electoral precinct-level database for Mexican municipal elections
Scientific Data
title Electoral precinct-level database for Mexican municipal elections
title_full Electoral precinct-level database for Mexican municipal elections
title_fullStr Electoral precinct-level database for Mexican municipal elections
title_full_unstemmed Electoral precinct-level database for Mexican municipal elections
title_short Electoral precinct-level database for Mexican municipal elections
title_sort electoral precinct level database for mexican municipal elections
url https://doi.org/10.1038/s41597-025-04918-9
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AT horaciolarreguy electoralprecinctleveldatabaseformexicanmunicipalelections
AT johnmarshall electoralprecinctleveldatabaseformexicanmunicipalelections
AT joseluisperezcastellanos electoralprecinctleveldatabaseformexicanmunicipalelections