EveryElectionResult.com

County-level US presidential election results, 2000–2024. Pilot coverage: 5 states, 396 counties.

States (Pilot Coverage)

• Arizona — 15 counties
• Georgia — 159 counties
• Michigan — 83 counties
• Pennsylvania — 67 counties
• Wisconsin — 72 counties

This is a pilot build covering 5 states as a first phase; full 50-state coverage is planned for a later release.