SouthWest Santa Rosa leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.
About 45% of adults in SouthWest Santa Rosa typically vote, below the U.S. average of about 62%. Among adults in SouthWest Santa Rosa, ~32% vote Democratic, ~14% Republican, and ~54% don't vote. The map below shows estimated turnout by block group.
How SouthWest Santa Rosa compares
Among neighborhoods within 5 miles, SouthWest Santa Rosa leans more Democratic than 2 of 3 neighbors.
SouthWest Santa Rosa runs about 19 points more Democratic than California as a whole.
Politics vary noticeably by block within SouthWest Santa Rosa. The north side is the most Democratic-leaning (D+45) and the southeast side is the least Democratic-leaning (D+31), a spread of about 14 points.
Why SouthWest Santa Rosa leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in SouthWest Santa Rosa. 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; SouthWest Santa Rosa, Santa Rosa, CA sits in the top quarter nationally on this measure.
Why turnout in SouthWest Santa Rosa looks the way it does
Areas with limited routine healthcare access turn out at lower rates. SouthWest Santa Rosa is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Crowded housing lines up with lower turnout, and about 17% of homes in SouthWest Santa Rosa have more than one occupant per room, above 97% of neighborhoods. Low high-school completion lines up with lower turnout, and about 67% of adults in SouthWest Santa Rosa have completed high school, below 96% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Wright Area, Santa Rosa, CA D+29
- Junior College Neighborhood Assc., Santa Rosa, CA D+62
- Coffey Park, Santa Rosa, CA D+35
- Larkfield-Wikiup, Santa Rosa, CA D+31
- East Petaluma, Petaluma, CA D+58
- Browns Valley, Napa, CA D+30
- Linda Vista-San Francisco, Napa, CA D+24
- Vintage, Napa, CA D+28
- Westwood-San Francisco, Napa, CA D+35
- Beard, Napa, CA D+37
Neighborhoods with Similar Populations
- South Berkeley, Berkeley, CA D+79
- Midway, Gulf Breeze, FL R+45
- Baker-Zachary Area, Baker, LA D+33
- Prosperity Church Road, Charlotte, NC D+55
- Magnolia, Seattle, WA D+72
- Drnag, San Bernardino, CA D+13
- East Arlington, Jacksonville, FL R+14
- East Sacramento, Sacramento, CA D+59
- Kailua Kona, Kailua-Kona, HI D+18
- Park Hill, Denver, CO D+72
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.