The Arizona Voter Project

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Voter file data Google BigQuery R / tidyverse Markov models Geospatial analysis

The Arizona Voter Project assembles and documents Arizona’s statewide voter file across build dates, then turns it into research infrastructure and public data products. I direct the project with support from a University of Arizona RII grant.

The public modules are in beta: figures are preliminary and will migrate to the official project site.

  • My Story — a guided walk through what a voter file is and what it records about a registrant.
  • Explorer — registration, roll churn, and time-series comparisons across counties, districts, precincts, and block groups.
  • Party — party transitions estimated from a continuous-time Markov model, so irregular file windows share one rate clock.
  • Common Ground — where Arizonans agree, by geography and party.
  • Voting — precinct-level turnout and vote distributions.
  • Understanding the file — field definitions, de-identification, small-cell suppression, and build-over-build comparisons.