Dos Rios leans Democratic by roughly 28 points: about 64% of voters vote Democratic and 36% Republican.
About 49% of adults in Dos Rios typically vote, below the U.S. average of about 62%. Among adults in Dos Rios, ~31% vote Democratic, ~18% Republican, and ~51% don't vote. The map below shows estimated turnout by block group.
How Dos Rios compares
Among cities within 25 miles, Dos Rios leans more Democratic than 5 of 10 neighbors.
Dos Rios runs about 8 points more Democratic than California as a whole.
Politics vary noticeably by neighborhood within Dos Rios. The north side is the most Democratic-leaning (D+31) and the east side is the least Democratic-leaning (D+21), a spread of about 10 points.
Why Dos Rios leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Dos Rios. The lean here lands roughly where demographic data alone would predict.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Dos Rios, CA sits in the bottom 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 Dos Rios looks the way it does
Areas with high food insecurity turn out at lower rates. About 26% of adults in Dos Rios report food insecurity, about 10 points above the U.S. average of 16%. Low high-school completion lines up with lower turnout, and about 70% of adults in Dos Rios have completed high school, below 98% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Laytonville, CA D+20
- Covelo, CA D+17
- Cummings, CA D+35
- Branscomb, CA D+36
- Leggett, CA D+50
- Island Mountain, CA D+11
- Willits, CA D+16
- Westport, CA D+53
- Muir, CA D+10
- Inglenook, CA D+34
Cities with Similar Populations
- Woodland Mills, TN R+66
- Motley, VA R+43
- Jefferson, VA R+32
- Orchard, IA R+48
- Overton, OH R+57
- Old Houlka, MS R+40
- Ostrander, MN R+44
- Power, MT R+57
- Union Water Works, PA R+58
- Prairieton, IN R+54
All Local Stats
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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.