Chino, CA Political Map | Democrat & Republican Areas in Chino

By the BestNeighborhood data science team. Last updated May 2026.

Chino is a true toss-up. About 49% of voters here vote Democratic and 51% Republican.

 

About 53% of adults in Chino typically vote, below the U.S. average of about 62%. Among adults in Chino, ~26% vote Democratic, ~27% Republican, and ~47% don't vote. The map below shows estimated turnout by block group.

How Chino compares

Among cities within 25 miles, Chino sits roughly in the middle of the political spectrum, with 73 neighbors leaning further in the place's direction and 24 leaning the other way.

Chino runs about 21 points more Republican than California as a whole. California leans Democratic overall, while Chino sits closer to the political middle.

Politics vary noticeably by neighborhood within Chino. The southeast side runs the most Democratic (Even) and the southwest side runs the most Republican (R+15), a spread of about 17 points.

Why Chino 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 Chino, not a ranked or complete list of what matters most.

Chino votes against the grain of California. California leans Democratic overall, while Chino 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; Chino, 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 Chino looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Chino 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 34% of households in Chino rent, above 90% of cities. High food insecurity lines up with lower turnout, and about 20% of adults in Chino report food insecurity, above 80% of cities. Learn more about the findings and methodology on the political spectrum map.

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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.