San Jose leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 52% of adults in San Jose typically vote, below the U.S. average of about 62%. Among adults in San Jose, ~30% vote Democratic, ~22% Republican, and ~48% don't vote. The map below shows estimated turnout by block group.
How San Jose compares
Among neighborhoods within 5 miles, San Jose leans more Democratic than 19 of 20 neighbors.
San Jose runs about 29 points more Democratic than Florida as a whole. Florida leans Republican overall, while San Jose is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within San Jose. The east side runs the most Democratic (D+38) and the southeast side runs the most Republican (R+12), a spread of about 50 points.
Why San Jose 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 San Jose, not a ranked or complete list of what matters most.
San Jose votes against the grain of Florida. Florida leans Republican overall, while San Jose runs about 29 points more Democratic.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; San Jose, Jacksonville, FL 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 San Jose looks the way it does
Areas with limited routine healthcare access turn out at lower rates. San Jose 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 49%, about 7 points below the Florida average of 56%. Renters vote less often than owners, and about 67% of households in San Jose rent, compared to around 39% in nearby neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- San Jose Forest, Jacksonville, FL R+23
- Southpoint, Jacksonville, FL R+8
- Goodby's Creek, Jacksonville, FL R+8
- Lakewood, Jacksonville, FL R+12
- Brierwood, Jacksonville, FL R+11
- Englewood, Jacksonville, FL R+5
- Sans Souci, Jacksonville, FL R+14
- Craven, Jacksonville, FL R+3
- Tiger Hole-Secret Woods, Jacksonville, FL R+17
- Secret Cove, Jacksonville, FL D+13
Neighborhoods with Similar Populations
- Rimmon Heights, Manchester, NH D+24
- Bronzeville, Chicago, IL D+76
- South Winds, Oxnard, CA D+33
- Depot Bench, Boise, ID D+35
- Memorial Parkway, Katy, TX R+11
- South River City, Austin, TX D+56
- North Valley, Syracuse, NY D+63
- Scenic Heights, Arvada, CO D+19
- South Side, Bethlehem, PA D+33
- San Pablo Gateway, Oakland, CA D+69
Sources and methodology
Precinct-level voting records used to fit the model come from Florida Division of 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.