All counties
Updated Dec 2025
Polk County Voter Registration
Monthly voter registration tracking for Polk County from May 2025 to Dec 2025. Active voters have increased by 19,122. Republican voters lead with 187,763. 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
439,911
+1,458 vs last month
Republican
187,763
+498 vs last month
Democratic
128,187
+280 vs last month
Other
123,961
+680 vs last month
New Registrations
1,314in Nov 2025
Republican
Democratic
Other
Party Switches
Jun 2025 – Dec 2025Net changes from affiliation switches
REP+702
DEM-847
OTH
Age & Party Distribution
Dec 2025Largest group: 66-75 (16%)
Republican
Democratic
Other