2025 Compare Cities Politics & Voting:
Rock Island, IL vs Sioux Falls, SD

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Highlights
- Registered voters in Sioux Falls are 22.5% less likely to be registered as Democrats than registered voters in Rock Island.
- Registered voters in Rock Island, are 4.8% more likely to be registered as Democrats, than in the rest of the United States.
 Rock Island, ILSioux Falls, SDUnited States
 Democrat  Unlock39.1%48.0%
 Republican42.2%  Unlock45.9%
 Independent Other  Unlock7.2%6.0%
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