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POTOMAC VS.
MERCER_ISLAND
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2026 Compare Cities Politics & Voting:
Potomac, MD vs Mercer Island, WA
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Highlights
- Registered voters in Mercer Island are 6.5% less likely to be registered as Democrats than registered voters in Potomac.
- Registered voters in Potomac, are 35.7% more likely to be registered as Democrats, than in the rest of the United States.
Potomac, MD
Mercer Island, WA
United States
Democrat
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69.8%
48.0%
Republican
19.4%
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45.9%
Independent Other
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9.1%
6.0%
Housing
VOTING CHART
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