Santa Clara leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 84% of adults in Santa Clara typically vote, above the U.S. average of about 62%. Among adults in Santa Clara, ~51% vote Democratic, ~34% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Santa Clara compares
Among neighborhoods within 5 miles, Santa Clara leans more Democratic than 1 of 8 neighbors.
Santa Clara runs about 5 points more Democratic than Oregon as a whole.
Politics vary noticeably by block within Santa Clara. The south side is the most Democratic-leaning (D+26) and the southwest side is the least Democratic-leaning (D+14), a spread of about 11 points.
Why Santa Clara leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Santa Clara. The lean here lands roughly where demographic data alone would predict.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Santa Clara, Eugene, OR sits above the national average on this measure.
Why turnout in Santa Clara looks the way it does
Turnout in Santa Clara sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
Neighborhoods with Similar Populations
- Loop, Chicago, IL D+57
- East Bloomington, Bloomington, MN D+36
- Southwestern Outer Drive, Dearborn, MI D+3
- Rockdale, Atlanta, GA D+58
- East Tampa, Tampa, FL D+66
- Printers Row, Chicago, IL D+69
- Summerdale, Philadelphia, PA D+58
- Burns Park, Ann Arbor, MI D+69
- North Redlands, Redlands, CA D+6
- Airport, Honolulu, HI D+8
Sources and methodology
Precinct-level voting records used to fit the model come from Oregon Secretary of State, Elections Division, 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.