Foothill Ranch leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 62% of adults in Foothill Ranch typically vote, near the U.S. average of about 62%. Among adults in Foothill Ranch, ~33% vote Democratic, ~29% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How Foothill Ranch compares
Among cities within 25 miles, Foothill Ranch leans more Democratic than 58 of 71 neighbors.
Foothill Ranch runs about 13 points more Republican than California as a whole.
Why Foothill Ranch 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 Foothill Ranch, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 71% of adults in Foothill Ranch hold a bachelor's degree, about 43 points above the U.S. average of 28%. Dense areas vote Democratic, and Foothill Ranch sits in the top fifth on density (about 76%, above 93% of cities).
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Foothill Ranch, 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 Foothill Ranch looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Foothill Ranch is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 71%, about 11 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Modjeska, CA R+3
- Lake Forest, CA D+2
- Silverado, CA R+8
- Trabuco Canyon, CA R+6
- Rancho Santa Margarita, CA R+2
- Mission Viejo, CA R+3
- Laguna Woods, CA D+12
- Laguna Hills, CA D+2
- Irvine, CA D+18
- Top-of-the-World, CA D+5
Cities with Similar Populations
- London, OH R+34
- Chestnut Hill, MA D+60
- Tehachapi, CA R+29
- Red Hill, SC R+19
- Rutland, VT D+3
- Exton, PA D+22
- Malvern, AR R+40
- Lakeland North, WA D+16
- Brook Park, OH R+9
- Mckinleyville, CA D+24
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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.