Nassau County Voter Registration
Monthly voter registration tracking for Nassau County from May 2025 to Feb 2026. Active voters have increased by 630. Republican voters lead with 48,419. 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 0.8% since May 2025, a net change of 630 voters.
Party Leadership
Republican voters lead with 48,419 registrations, a margin of 30,660 (38.6%) over Other/NPA voters.
Fastest Moving Party
Republican registration is the fastest growing party at +1.3% since May 2025.
Largest Age Group
The 66-75 age group is the largest voting bloc with 14,996 voters (18.9% of active registrations).
Party Switching
Republican voters have seen a net gain of 142 voters through party switches over the tracked period.