Hamilton County Voter Registration
Monthly voter registration tracking for Hamilton County from May 2025 to Feb 2026. Active voters have increased by 191. Republican voters lead with 3,647. Active voter counts may fluctuate month-to-month due to routine maintenance activities including the removal of inactive voters, deceased individuals, and duplicate registrations.
Key Insights
Registration Trend
Active voter registration has grown by 2.8% since May 2025, a net change of 191 voters.
Party Leadership
Republican voters lead with 3,647 registrations, a margin of 1,321 (18.9%) over Democratic voters.
Fastest Moving Party
Other/NPA registration is the fastest growing party at +8.5% since May 2025.
Largest Age Group
The 66-75 age group is the largest voting bloc with 1,417 voters (20.3% of active registrations).
Party Switching
Republican voters have seen a net gain of 30 voters through party switches over the tracked period.
Momentum
Voter registration growth is accelerating — the latest month added 26 voters compared to 14 the prior month.