Rancho West leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.
About 44% of adults in Rancho West typically vote, below the U.S. average of about 62%. Among adults in Rancho West, ~26% vote Democratic, ~18% Republican, and ~56% don't vote. The map below shows estimated turnout by block group.
How Rancho West compares
Among neighborhoods within 5 miles, Rancho West leans more Democratic than 4 of 24 neighbors.
Politically, Rancho West sits close to the rest of California.
Why Rancho West leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Rancho West, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Rancho West live in densely developed areas, about 64 points above the U.S. average of 36%.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Rancho West, San Bernardino, 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 Rancho West looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Rancho West is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 48%, about 14 points below the California average of 62%. High food insecurity lines up with lower turnout, and about 33% of adults in Rancho West report food insecurity, above 86% of neighborhoods. Low high-school completion lines up with lower turnout, and about 74% of adults in Rancho West have completed high school, below 92% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Terrace, San Bernardino, CA D+23
- Amtrak, San Bernardino, CA D+19
- Downtown Rialto, Rialto, CA D+28
- Lytle Creek, San Bernardino, CA D+26
- Alessandro, San Bernardino, CA D+29
- Valley College, San Bernardino, CA D+17
- La Plaza, San Bernardino, CA D+27
- Shirrells, San Bernardino, CA D+53
- Mount Vernon, San Bernardino, CA D+37
- Feldheym, San Bernardino, CA D+25
Neighborhoods with Similar Populations
- Far North Dallas-Richardson, Richardson, TX D+29
- Como, St. Paul, MN D+61
- Six Forks, Raleigh, NC D+27
- Silver Lakes, Pembroke Pines, FL D+16
- West Ward, Easton, PA D+27
- Fells Point, Baltimore, MD D+70
- Greater Fifth Ward, Houston, TX D+63
- Edison Historic District, Pomona, CA D+36
- Sterling Park, Sterling, VA D+23
- Welleby, Sunrise, FL D+21
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.