Hamilton leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 68% of adults in Hamilton typically vote, above the U.S. average of about 62%. Among adults in Hamilton, ~22% vote Democratic, ~45% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Hamilton compares
Among cities within 25 miles, Hamilton leans more Republican than 38 of 39 neighbors.
Hamilton runs about 52 points more Republican than Washington as a whole. Washington leans Democratic overall, while Hamilton is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Hamilton. The west side is the most Republican-leaning (R+36) and the southwest side is the least Republican-leaning (R+20), a spread of about 16 points.
Why Hamilton leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Hamilton, not a ranked or complete list of what matters most.
Hamilton votes against the grain of Washington. Washington leans Democratic overall, while Hamilton runs about 52 points more Republican. Rural areas vote Republican, and Hamilton sits in the bottom quarter on density (about 4%, below 85% of cities). A high family-household share predicts Republican voting, and about 76% of households in Hamilton are family households, above 80% of cities.
Population density and Republican lean
Places with low population density tend to lean Republican; Hamilton, WA sits in the bottom quarter nationally on this measure.
Why turnout in Hamilton looks the way it does
Turnout in Hamilton sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lyman, WA R+30
- Grassmere, WA R+27
- Concrete, WA R+23
- Sedro-Woolley, WA R+13
- Van Horn, WA R+25
- Prairie, WA R+22
- Clear Lake, WA R+17
- Hoogdal, WA R+19
- Sterling, WA R+10
- Saxon, WA Even
Cities with Similar Populations
- Core, WV R+55
- Randall, IA R+40
- Little Switzerland, NC R+59
- Daggett, CA R+34
- Pine Hills, CA R+13
- Edna, OK R+64
- Shamrock, MO R+64
- Oxly, MO R+71
- Cearfoss, MD R+34
- Wilson, SC Even
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Washington Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.