Cajon leans slightly Democratic by roughly 8 points: about 54% of voters vote Democratic and 46% Republican.
About 39% of adults in Cajon typically vote, below the U.S. average of about 62%. Among adults in Cajon, ~21% vote Democratic, ~18% Republican, and ~61% don't vote. The map below shows estimated turnout by block group.
How Cajon compares
Among neighborhoods within 5 miles, Cajon leans more Democratic than 4 of 30 neighbors.
Cajon runs about 11 points more Republican than California as a whole.
Why Cajon 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 Cajon, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in Cajon is about 15%, about 58 points below the U.S. average of 72%.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Cajon, San Bernardino, CA sits in the bottom quarter nationally 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 Cajon looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Cajon 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 50%, about 12 points below the California average of 62%. High food insecurity lines up with lower turnout, and about 30% of adults in Cajon report food insecurity, above 83% of neighborhoods. Low high-school completion lines up with lower turnout, and about 79% of adults in Cajon have completed high school, below 87% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- North Park Riverside, San Bernardino, CA R+3
- Wildwood Park, San Bernardino, CA D+14
- Sandin Hills, San Bernardino, CA D+15
- University-San Bernardino, San Bernardino, CA D+29
- Arrowhead, San Bernardino, CA D+10
- Hudson, San Bernardino, CA D+12
- Nena, San Bernardino, CA D+5
- Arrowview, San Bernardino, CA D+15
- Muscupiabe, San Bernardino, CA D+20
- Kendall, San Bernardino, CA D+16
Neighborhoods with Similar Populations
- Bryant Pattengill West, Ann Arbor, MI D+55
- Downtown, Honolulu, HI D+33
- Thrasher's Corner-Red Hawk, Bothell, WA D+26
- Oak Hill, Newton Center, MA D+45
- Bakersfield Country Club, Bakersfield, CA R+12
- North Central, San Antonio, TX D+21
- Lincoln Park, Denver, CO D+63
- Linda Vista-San Francisco, Napa, CA D+24
- Olde Whitehall, Charlotte, NC D+43
- Woodland Hills, Cleveland, OH D+86
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.