Hillside leans heavily Democratic by roughly 38 points: about 69% of voters vote Democratic and 31% Republican.
About 46% of adults in Hillside typically vote, below the U.S. average of about 62%. Among adults in Hillside, ~32% vote Democratic, ~14% Republican, and ~54% don't vote. The map below shows estimated turnout by block group.
How Hillside compares
Among neighborhoods within 5 miles, Hillside leans more Democratic than 7 of 40 neighbors.
Hillside runs about 18 points more Democratic than California as a whole.
Politics vary noticeably by block within Hillside. The south side is the most Democratic-leaning (D+45) and the northwest side is the least Democratic-leaning (D+34), a spread of about 11 points.
Why Hillside leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Hillside. The lean here lands roughly where demographic data alone would predict.
Park access and Democratic lean
Places with heavy park coverage tend to lean Democratic; Hillside, Daly City, CA sits in the top quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in Hillside looks the way it does
Crowded housing lines up with lower turnout. About 14% of homes in Hillside have more than one occupant per room, above 96% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Original Daly City, Daly City, CA D+40
- Crocker, Daly City, CA D+42
- Broadmoor, Daly City, CA D+36
- St. Francis, Daly City, CA D+35
- Westlake-San Francisco, Daly City, CA D+40
- Ocean View, San Francisco, CA D+45
- Crocker Amazon, San Francisco, CA D+34
- Ingleside, San Francisco, CA D+50
- Outer Mission, San Francisco, CA D+48
- Serramonte, Daly City, CA D+36
Neighborhoods with Similar Populations
- Sans Pareil, Jacksonville, FL R+3
- Douglas Park, Arlington, VA D+53
- Trumbull Village, Albuquerque, NM D+23
- Shenandoah, Aurora, CO D+23
- Providence Plantation, Charlotte, NC Even
- Brookside, Stockton, CA D+12
- Brentwood, Austin, TX D+59
- Balboa Park, San Diego, CA D+58
- Mount Tabor, Portland, OR D+85
- Green Lake, Seattle, WA D+76
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.