All counties
Updated Oct 2025
Hillsborough County Voter Registration
Monthly voter registration tracking for Hillsborough County from May 2025 to Oct 2025. Active voters have increased by 13,982. Republican voters lead with 290,537. 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
805,301
+793
last monthRepublican Voters
290,537
+767
last monthDemocratic Voters
271,739
-738
last monthOther Voters
243,025
+764
last monthMonthly New Registrations
Age & Party Mix
Legend:
REP
DEM
Other
Monthly Party Switches
DEM
REP
OTH
Above axis = net gain · Below axis = net loss
| Month | Active | Republican | Democratic | Other | Total | Active Change |
|---|---|---|---|---|---|---|
| Oct 2025 | 805,301 | 290,537 | 271,739 | 243,025 | 1,008,167 | +793 |
| Sep 2025 | 804,508 | 289,770 | 272,477 | 242,261 | 1,007,279 | +2,117 |
| Aug 2025 | 802,391 | 288,987 | 272,021 | 241,383 | 1,005,588 | +2,635 |
| Jul 2025 | 799,756 | 288,131 | 271,597 | 240,028 | 1,004,028 | +3,729 |
| Jun 2025 | 796,027 | 287,155 | 270,478 | 238,394 | 1,002,158 | +4,708 |
| May 2025 | 791,319 | 286,037 | 268,955 | 236,327 | 1,000,741 | — |