Cooley Ranch leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 42% of adults in Cooley Ranch typically vote, below the U.S. average of about 62%. Among adults in Cooley Ranch, ~26% vote Democratic, ~16% Republican, and ~58% don't vote. The map below shows estimated turnout by block group.
How Cooley Ranch compares
Among neighborhoods within 5 miles, Cooley Ranch leans more Democratic than 9 of 16 neighbors.
Politically, Cooley Ranch sits close to the rest of California.
Politics vary noticeably by block within Cooley Ranch. The north side is the most Democratic-leaning (D+35) and the southwest side is the least Democratic-leaning (D+4), a spread of about 31 points.
Why Cooley Ranch 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 Cooley Ranch, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 51% of adults in Cooley Ranch have never been married, modestly above similar-sized neighborhoods (around 43%).
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Cooley Ranch, Colton, CA sits below the national average on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Cooley Ranch looks the way it does
Renters vote less often than owners. About 73% of households in Cooley Ranch rent, about 48 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 9% of homes in Cooley Ranch have more than one occupant per room, above 89% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- South Pointe, San Bernardino, CA D+13
- Valley College, San Bernardino, CA D+17
- Hunter Industrial Park, Riverside, CA D+19
- Lytle Creek, San Bernardino, CA D+26
- Amtrak, San Bernardino, CA D+19
- Rancho West, San Bernardino, CA D+18
- North Central Loma Linda, Loma Linda, CA D+11
- Riverview, San Bernardino, CA D+8
- Northside, Riverside, CA D+17
- International, San Bernardino, CA D+28
Neighborhoods with Similar Populations
- Old West Durham, Durham, NC D+73
- Becton Park, Charlotte, NC D+33
- Mountain Creek, Pflugerville, TX D+24
- North Image, Vancouver, WA D+6
- Barrington Park, Taylorsville, UT D+15
- Mount Lookout, Cincinnati, OH D+33
- Leschi, Seattle, WA D+78
- West Urbana, Urbana, IL D+72
- Meadowbrook, Augusta, GA D+77
- Kendrick, Waco, TX D+2
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.