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2026 Compare Cities Politics & Voting:
Ontario, OR vs San Diego, CA

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Highlights
- Registered voters in San Diego are 161.6% more likely to be registered as Democrats than registered voters in Ontario.
- Registered voters in Ontario, are 123.1% less likely to be registered as Democrats, than in the rest of the United States.
 Ontario, ORSan Diego, CAUnited States
 Democrat  Unlock56.3%48.0%
 Republican68.9%  Unlock45.9%
 Independent Other  Unlock7.1%6.0%
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Learn More About Ontario, Oregon
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Learn More About San Diego, California
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