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Updated Oct 2025

Nassau County Voter Registration

Monthly voter registration tracking for Nassau County from May 2025 to Oct 2025. Active voters have increased by 49. Republican voters lead with 47,986. Active voter counts may fluctuate month-to-month due to routine maintenance activities including the removal of inactive voters, deceased individuals, and duplicate registrations.

Active Voters

78,951
+189
last month

Republican Voters

47,986
+158
last month

Democratic Voters

13,307
-20
last month

Other Voters

17,658
+51
last month

Monthly New Registrations

Age & Party Mix

78,279 active • Oct 2025
Legend:
REP
DEM
Other

Monthly Party Switches

DEM
REP
OTH
Above axis = net gain · Below axis = net loss
MonthActiveRepublicanDemocraticOtherTotalActive Change
Oct 202578,95147,98613,30717,65887,023+189
Sep 202578,76247,82813,32717,60786,791+58
Aug 202578,70447,75213,36517,58786,564-28
Jul 202578,73247,72413,41217,59686,454+4
Jun 202578,72847,75013,40217,57686,133-174
May 202578,90247,81113,44017,65185,944—