Altamont leans slightly Democratic by roughly 12 points: about 56% of voters vote Democratic and 44% Republican.
About 56% of adults in Altamont typically vote, below the U.S. average of about 62%. Among adults in Altamont, ~31% vote Democratic, ~25% Republican, and ~44% don't vote. The map below shows estimated turnout by block group.
How Altamont compares
Among neighborhoods within 5 miles, Altamont leans more Democratic than 1 of 3 neighbors.
Altamont runs about 8 points more Republican than California as a whole.
Why Altamont leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Altamont. The lean here lands roughly where demographic data alone would predict.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Altamont, Mountain House, CA sits in the top quarter nationally on this measure.
Why turnout in Altamont looks the way it does
Turnout in Altamont 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
- Questa, Mountain House, CA D+10
- Bethany, Mountain House, CA D+12
- Hansen, Mountain House, CA D+15
- Weston Ranch, Stockton, CA D+24
- Brookside, Stockton, CA D+12
- Seaport, Stockton, CA D+27
- Lincoln Village West, Stockton, CA D+11
- Civic Center, Stockton, CA D+34
- Pacific, Stockton, CA D+24
- Park, Stockton, CA D+26
Neighborhoods with Similar Populations
- University, Waco, TX D+15
- Heistand, Madison, WI D+50
- Bywater, New Orleans, LA D+63
- Clarksville, Austin, TX D+58
- West Mt. Scott, Happy Valley, OR D+23
- Riverside Heights, Tampa, FL D+21
- Loch Raven Village, Parkville, MD D+55
- Apple Creek, San Antonio, TX D+26
- Germantown, Nashville, TN D+36
- Duveneck-Saint Francis, Palo Alto, CA D+44
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.