Downtown Rialto leans Democratic by roughly 28 points: about 64% of voters vote Democratic and 36% Republican.
About 36% of adults in Downtown Rialto typically vote, below the U.S. average of about 62%. Among adults in Downtown Rialto, ~23% vote Democratic, ~13% Republican, and ~64% don't vote. The map below shows estimated turnout by block group.
How Downtown Rialto compares
Among neighborhoods within 5 miles, Downtown Rialto leans more Democratic than 13 of 16 neighbors.
Downtown Rialto runs about 7 points more Democratic than California as a whole.
Why Downtown Rialto 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 Downtown Rialto, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Downtown Rialto live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 47% of adults in Downtown Rialto have never been married, above 76% of neighborhoods.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Downtown Rialto, Rialto, 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 Downtown Rialto looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Downtown Rialto 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 43%, about 19 points below the California average of 62%. Renters vote less often than owners, and about 76% of households in Downtown Rialto rent, compared to around 48% in nearby neighborhoods. High food insecurity lines up with lower turnout, and about 40% of adults in Downtown Rialto report food insecurity, above 93% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Rancho West, San Bernardino, CA D+18
- Terrace, San Bernardino, CA D+23
- Amtrak, San Bernardino, CA D+19
- Alessandro, San Bernardino, CA D+29
- Shirrells, San Bernardino, CA D+53
- Lytle Creek, San Bernardino, CA D+26
- Mount Vernon, San Bernardino, CA D+37
- La Plaza, San Bernardino, CA D+27
- Downtown Fontana, Fontana, CA D+20
- Valley College, San Bernardino, CA D+17
Neighborhoods with Similar Populations
- Terrace-Shurtleff, Napa, CA D+36
- Benton Park, St. Louis, MO D+74
- Port Dixie, Lake Lorraine, FL R+23
- Central Business District-Buffalo, Buffalo, NY D+61
- Middletown-Pelham Bay, Bronx, NY D+12
- Hamlin Park, Chicago, IL D+63
- Westchester, Catonsville, MD D+34
- Putnam Lake, Patterson, NY R+19
- East Isles, Minneapolis, MN D+81
- Vista del Norte, San Antonio, TX D+4
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.