Old Mountain View is a Democratic stronghold. About 80% of voters here vote Democratic and 20% Republican.
About 58% of adults in Old Mountain View typically vote, near the U.S. average of about 62%. Among adults in Old Mountain View, ~46% vote Democratic, ~12% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How Old Mountain View compares
Among neighborhoods within 5 miles, Old Mountain View leans more Democratic than 20 of 21 neighbors.
Old Mountain View runs about 40 points more Democratic than California as a whole.
Politics vary noticeably by block within Old Mountain View. The north side is the most Democratic-leaning (D+68) and the southwest side is the least Democratic-leaning (D+48), a spread of about 20 points.
Why Old 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 Old Mountain View, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 80% of adults in Old Mountain View hold a bachelor's degree, about 51 points above the U.S. average of 28%. Dense areas vote Democratic, and Old Mountain View sits in the top fifth on density (more than 99%, above 89% of neighborhoods).
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Old Mountain View, Mountain View, CA sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Old Mountain View looks the way it does
Renters vote less often than owners. About 73% of households in Old Mountain View rent, about 48 points above the U.S. average of 25%. Strong routine healthcare access lines up with higher turnout, and Old Mountain View sits in the top quarter on routine-care measures. Crowded housing lines up with lower turnout, and about 8% of homes in Old Mountain View have more than one occupant per room, above 87% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Jackson Park, Mountain View, CA D+53
- Whisman Station, Mountain View, CA D+45
- Cuesta Park, Mountain View, CA D+40
- Shoreline West, Mountain View, CA D+54
- Martens-Carmelita, Mountain View, CA D+38
- North Whisman, Mountain View, CA D+39
- Monta Loma, Mountain View, CA D+46
- North Los Altos, Los Altos, CA D+45
- Sunnyvale West, Sunnyvale, CA D+37
- Heritage District, Sunnyvale, CA D+43
Neighborhoods with Similar Populations
- Franklin Randolph, Boise, ID Even
- Park Central Area, Abilene, TX R+16
- Spice Tract, Bakersfield, CA Even
- Ukrainian Village, Parma, OH Even
- Walnut Hills, Cincinnati, OH D+74
- Mount Hope, San Diego, CA D+35
- West Phoenix, Phoenix, AZ D+32
- Bayless Atkins, Lubbock, TX R+9
- South Peoria, Tulsa, OK D+28
- Jordan Heights, Allentown, PA D+36
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.