All counties
Updated Oct 2025
Orange County Voter Registration
Monthly voter registration tracking for Orange County from May 2025 to Oct 2025. Active voters have increased by 4,126. Democratic voters lead with 317,358. 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
818,506
-5,494
last monthRepublican Voters
226,318
-32
last monthDemocratic Voters
317,358
-5,150
last monthOther Voters
274,830
-312
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 | 818,506 | 226,318 | 317,358 | 274,830 | 945,367 | -5,494 |
| Sep 2025 | 824,000 | 226,350 | 322,508 | 275,142 | 944,465 | +2,531 |
| Aug 2025 | 821,469 | 225,647 | 321,698 | 274,124 | 942,514 | +667 |
| Jul 2025 | 820,802 | 225,467 | 321,716 | 273,619 | 942,484 | +3,500 |
| Jun 2025 | 817,302 | 224,629 | 320,561 | 272,112 | 939,125 | +2,922 |
| May 2025 | 814,380 | 223,891 | 319,701 | 270,788 | 937,064 | — |