Upper Dimond is a Democratic stronghold. About 89% of voters here vote Democratic and 11% Republican.
About 67% of adults in Upper Dimond typically vote, near the U.S. average of about 62%. Among adults in Upper Dimond, ~60% vote Democratic, ~7% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Upper Dimond compares
Among neighborhoods within 5 miles, Upper Dimond leans more Democratic than 50 of 67 neighbors.
Upper Dimond runs about 57 points more Democratic than California as a whole.
Why Upper Dimond 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 Upper Dimond, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Upper Dimond live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Upper Dimond sits in the top quarter (about 60%, above 81% of neighborhoods).
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Upper Dimond, Oakland, CA sits in the top 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 Upper Dimond looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Upper Dimond is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 73%, about 13 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Dimond, Oakland, CA D+67
- Laurel, Oakland, CA D+70
- Glenview, Oakland, CA D+79
- Allendale, Oakland, CA D+63
- Upper Laurel, Oakland, CA D+77
- Redwood Heights, Oakland, CA D+74
- Lynn-Highland Park, Oakland, CA D+62
- Reservoir Hills, Oakland, CA D+53
- Trestle Glen, Oakland, CA D+80
- Highland Terrace, Oakland, CA D+55
Neighborhoods with Similar Populations
- Holgate Avenue Historic District, Defiance, OH R+28
- Downtown Bryan, Bryan, TX D+34
- Fox Farm, Great Falls, MT R+25
- South Park, Morgantown, WV D+32
- Cypress Run, Coral Springs, FL D+10
- Navco, Mobile, AL D+77
- Woodmere, Jacksonville, FL R+6
- Painted Meadows, Santa Fe, TX R+29
- Minikahda Vista, St. Louis Park, MN D+55
- Hopecrest, Morgantown, WV D+26
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.