Hamilton City is a true toss-up. About 50% of voters here vote Democratic and 50% Republican.
About 39% of adults in Hamilton City typically vote, below the U.S. average of about 62%. Among adults in Hamilton City, ~20% vote Democratic, ~20% Republican, and ~60% don't vote. The map below shows estimated turnout by block group.
How Hamilton City compares
Among cities within 25 miles, Hamilton City sits roughly in the middle of the political spectrum, with 2 neighbors leaning further in the place's direction and 27 leaning the other way.
Hamilton City runs about 21 points more Republican than California as a whole. California leans Democratic overall, while Hamilton City sits closer to the political middle.
Politics vary noticeably by neighborhood within Hamilton City. The east side runs the most Democratic (D+12) and the southwest side runs the most Republican (R+29), a spread of about 41 points.
Why Hamilton City 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 City, not a ranked or complete list of what matters most.
Hamilton City votes against the grain of California. California leans Democratic overall, while Hamilton City runs about 21 points more Republican.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Hamilton City, CA sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Hamilton City looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Hamilton City is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 40% of households in Hamilton City rent, above 94% of cities. High food insecurity lines up with lower turnout, and about 23% of adults in Hamilton City report food insecurity, above 88% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Rotavele, CA R+27
- Mills Orchard, CA R+46
- Ordbend, CA R+51
- Chico, CA D+15
- Orland, CA R+31
- Artois, CA R+61
- Glenn, CA R+64
- Vina, CA R+50
- Richardson Springs, CA Even
- Durham, CA R+23
Cities with Similar Populations
- Mineral City, OH R+59
- Golden, OK R+63
- Walton Hills, OH R+15
- Elida, OH R+47
- Sheldon, TX R+6
- Georgetown, PA R+52
- Remsen, IA R+58
- Lower Lake, CA R+9
- Tool, TX R+69
- Henryville, PA R+11
Sources and methodology
Precinct-level voting records used to fit the model come from California 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.