Mountain View leans Democratic by roughly 28 points: about 64% of voters vote Democratic and 36% Republican.
About 34% of adults in Mountain View typically vote, below the U.S. average of about 62%. Among adults in Mountain View, ~22% vote Democratic, ~12% Republican, and ~66% don't vote. The map below shows estimated turnout by block group.
How Mountain View compares
Among neighborhoods within 5 miles, Mountain View leans more Democratic than 5 of 6 neighbors.
Mountain View runs about 7 points more Democratic than California as a whole.
Why Mountain View 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 Mountain View, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in Mountain View is about 2%, about 70 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; Mountain View, El Monte, 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 Mountain View looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Mountain View 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 48%, about 14 points below the California average of 62%. High food insecurity lines up with lower turnout, and about 34% of adults in Mountain View report food insecurity, above 88% of neighborhoods. Low high-school completion lines up with lower turnout, and about 62% of adults in Mountain View have completed high school, below 98% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Valle Lindo, South El Monte, CA D+25
- Bassett, West Puente Valley, CA D+31
- North El Monte, Arcadia, CA D+13
- South San Gabriel, Rosemead, CA D+24
- Mayflower Village, Arcadia, CA D+14
- Garvey, Rosemead, CA D+17
- East San Gabriel, San Gabriel, CA D+20
- El Rancho, Pico Rivera, CA D+29
- Los Neitos, West Whittier-Los Nietos, CA D+27
- Covina-Valley, Covina, CA D+18
Neighborhoods with Similar Populations
- Rose Hill, Alexandria, VA D+42
- Flour Bluff, Corpus Christi, TX R+31
- Nob Hill, San Francisco, CA D+62
- Bay Terraces, San Diego, CA D+20
- Rosedale, Bakersfield, CA R+53
- Noe Valley, San Francisco, CA D+82
- Manoa, Honolulu, HI D+44
- San Luis Rey, Oceanside, CA D+11
- Ukrainian Village, Chicago, IL D+72
- Mililani Mauka-Launani Valley, Mililani, HI D+16
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.