Serramonte leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 53% of adults in Serramonte typically vote, below the U.S. average of about 62%. Among adults in Serramonte, ~36% vote Democratic, ~17% Republican, and ~47% don't vote. The map below shows estimated turnout by block group.
How Serramonte compares
Among neighborhoods within 5 miles, Serramonte leans more Democratic than 2 of 24 neighbors.
Serramonte runs about 16 points more Democratic than California as a whole.
Politics vary noticeably by block within Serramonte. The north side is the most Democratic-leaning (D+49) and the southwest side is the least Democratic-leaning (D+28), a spread of about 21 points.
Why Serramonte leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Serramonte. 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; Serramonte, 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 Serramonte looks the way it does
Crowded housing lines up with lower turnout. About 8% of homes in Serramonte have more than one occupant per room, above 88% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Fairmont, Pacifica, CA D+38
- Westview, Pacifica, CA D+52
- Serra Highlands, South San Francisco, CA D+43
- Edgemar-Pacific Manor, Pacifica, CA D+54
- Westborough, South San Francisco, CA D+41
- St. Francis, Daly City, CA D+35
- El Camino, South San Francisco, CA D+43
- Sunshine Gardens, South San Francisco, CA D+41
- Sharp Park, Pacifica, CA D+51
- Hillside, Daly City, CA D+39
Neighborhoods with Similar Populations
- Friendly, Fort Washington, MD D+78
- Bloomfield-Allen, Des Moines, IA D+4
- Holland, Minneapolis, MN D+67
- Flamingo-Lummus, Miami Beach, FL D+17
- El Toro Marine Air Station, Irvine, CA D+18
- Highland-Stoner Hill, Shreveport, LA D+39
- Chinatown-San Francisco, San Francisco, CA D+38
- North Shore, Haleiwa, HI D+7
- Financial District, San Francisco, CA D+53
- Bulls Head, Staten Island, NY R+31
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.