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2026 Compare Cities Politics & Voting:
Castana, IA vs Ottawa, IL

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Highlights
- Registered voters in Ottawa are 44.0% more likely to be registered as Democrats than registered voters in Castana.
- Registered voters in Castana, are 76.1% less likely to be registered as Democrats, than in the rest of the United States.
 Castana, IAOttawa, ILUnited States
 Democrat  Unlock39.3%48.0%
 Republican68.2%  Unlock45.9%
 Independent Other  Unlock7.1%6.0%
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Learn More About Castana, Iowa
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Learn More About Ottawa, Illinois
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