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Updated Oct 2025

Polk County Voter Registration

Monthly voter registration tracking for Polk County from May 2025 to Oct 2025. Active voters have increased by 14,409. Republican voters lead with 186,148. 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

435,198
+3,426
last month

Republican Voters

186,148
+1,322
last month

Democratic Voters

127,105
+621
last month

Other Voters

121,945
+1,483
last month

Monthly New Registrations

Age & Party Mix

431,355 active • Oct 2025
Legend:
REP
DEM
Other

Monthly Party Switches

DEM
REP
OTH
Above axis = net gain · Below axis = net loss
MonthActiveRepublicanDemocraticOtherTotalActive Change
Oct 2025435,198186,148127,105121,945543,200+3,426
Sep 2025431,772184,826126,484120,462540,807+2,036
Aug 2025429,736184,073126,038119,625539,240+2,830
Jul 2025426,906183,028125,460118,418537,020+2,700
Jun 2025424,206182,152124,783117,271535,218+3,417
May 2025420,789181,213123,796115,780533,832—