Rancho Cordova leans slightly Democratic by roughly 10 points: about 55% of voters vote Democratic and 45% Republican.
About 58% of adults in Rancho Cordova typically vote, near the U.S. average of about 62%. Among adults in Rancho Cordova, ~32% vote Democratic, ~26% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How Rancho Cordova compares
Among cities within 25 miles, Rancho Cordova leans more Democratic than 46 of 59 neighbors.
Rancho Cordova runs about 10 points more Republican than California as a whole.
Politics vary noticeably by neighborhood within Rancho Cordova. The west side runs the most Democratic (D+17) and the south side runs the most Republican (Even), a spread of about 17 points.
Why Rancho Cordova 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 Rancho Cordova, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 92% of residents in Rancho Cordova live in densely developed areas, about 56 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Rancho Cordova sits in the top quarter (about 34%, above 80% of cities). A high never-married share predicts Democratic voting, and about 33% of adults in Rancho Cordova have never been married, above 84% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Rancho Cordova, CA sits in the top tenth nationally on this measure.
Why turnout in Rancho Cordova looks the way it does
Renters vote less often than owners. About 39% of households in Rancho Cordova rent, about 14 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 6% of homes in Rancho Cordova have more than one occupant per room, above 90% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Mather, CA Even
- Gold River, CA D+16
- Carmichael, CA D+11
- La Riviera, CA D+30
- Rosemont, CA D+21
- Fair Oaks, CA D+6
- Arden-Arcade, CA D+25
- Orangevale, CA R+10
- Citrus Heights, CA R+3
- North Highlands, CA D+7
Cities with Similar Populations
- Eau Claire, WI D+16
- Westminster, CO D+19
- Owensboro, KY R+26
- Centennial, CO D+16
- Johns Creek, GA D+9
- Somerville, MA D+69
- Port Charlotte, FL R+32
- Springdale, AR R+7
- Madera, CA Even
- Littleton, CO D+17
All Local Stats
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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.