Duboce Triangle is a Democratic stronghold. About 91% of voters here vote Democratic and 9% Republican.
About 70% of adults in Duboce Triangle typically vote, above the U.S. average of about 62%. Among adults in Duboce Triangle, ~64% vote Democratic, ~6% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How Duboce Triangle compares
Among neighborhoods within 5 miles, Duboce Triangle is the most Democratic-leaning.
Duboce Triangle runs about 63 points more Democratic than California as a whole.
Why Duboce Triangle 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 Duboce Triangle, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 78% of adults in Duboce Triangle hold a bachelor's degree, about 49 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 56% of adults in Duboce Triangle have never been married, above 89% of neighborhoods.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Duboce Triangle, San Francisco, CA sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Duboce Triangle looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Duboce Triangle 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 72%, about 12 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Castro-Upper Market, San Francisco, CA D+82
- Haight-Ashbury, San Francisco, CA D+82
- Western Addition, San Francisco, CA D+73
- Liberty Street Historic District, San Francisco, CA D+81
- Mission, San Francisco, CA D+72
- Cole Valley, San Francisco, CA D+82
- Noe Valley, San Francisco, CA D+82
- Downtown San Francisco, San Francisco, CA D+56
- Twin Peaks, San Francisco, CA D+67
- Diamond Heights, San Francisco, CA D+71
Neighborhoods with Similar Populations
- Bethel Welborn, Kansas City, KS D+41
- Sunbeam, Jacksonville, FL R+11
- Mustang-Padre Island, Corpus Christi, TX R+38
- Day Square, Boston, MA D+43
- Santo Nino, Laredo, TX D+7
- Oak Hill, Jacksonville, FL D+31
- Rancho del Rey, Chula Vista, CA D+15
- Downtown Walnut Creek, Walnut Creek, CA D+52
- Central Business District, Kansas City, MO D+51
- Brookline Village Commercial District, Brookline, MA D+76
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.