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

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

Rodeo leans heavily Democratic by roughly 38 points: about 69% of voters vote Democratic and 31% Republican.

 

About 56% of adults in Rodeo typically vote, below the U.S. average of about 62%. Among adults in Rodeo, ~39% vote Democratic, ~17% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.

How Rodeo compares

Among cities within 25 miles, Rodeo leans more Democratic than 24 of 75 neighbors.

Rodeo runs about 18 points more Democratic than California as a whole.

Politics vary noticeably by neighborhood within Rodeo. The southwest side is the most Democratic-leaning (D+46) and the southeast side is the least Democratic-leaning (D+32), a spread of about 14 points.

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

Dense areas vote Democratic. About 84% of residents in Rodeo live in densely developed areas, about 47 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Rodeo sits in the top quarter (about 36%, above 83% of cities). A high never-married share predicts Democratic voting, and about 39% of adults in Rodeo have never been married, above 93% of cities.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Rodeo, CA sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Rodeo looks the way it does

Renters vote less often than owners. About 37% of households in Rodeo rent, about 12 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 6% of homes in Rodeo have more than one occupant per room, above 92% 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.