Guernewood Park leans heavily Democratic by roughly 36 points: about 68% of voters vote Democratic and 32% Republican.
About 46% of adults in Guernewood Park typically vote, below the U.S. average of about 62%. Among adults in Guernewood Park, ~31% vote Democratic, ~15% Republican, and ~54% don't vote. The map below shows estimated turnout by block group.
How Guernewood Park compares
Among cities within 25 miles, Guernewood Park leans more Democratic than 9 of 32 neighbors.
Guernewood Park runs about 17 points more Democratic than California as a whole.
Why Guernewood Park leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Guernewood Park. The lean here lands roughly where demographic data alone would predict.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Guernewood Park, 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 Guernewood Park looks the way it does
Renters vote less often than owners. About 33% of households in Guernewood Park rent, about 8 points above the U.S. average of 25%. Strong routine healthcare access lines up with higher turnout, and Guernewood Park sits in the top quarter on routine-care measures. Crowded housing lines up with lower turnout, and about 6% of homes in Guernewood Park have more than one occupant per room, above 91% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Guerneville, CA D+53
- Cazadero, CA D+43
- Duncans Mills, CA D+48
- Rio Nido, CA D+45
- Monte Rio, CA D+54
- Forestville, CA D+53
- Jimtown, CA D+44
- Occidental, CA D+53
- Jenner, CA D+55
- Carmet, CA D+47
Cities with Similar Populations
- Woodbury, IN R+49
- Riverside, WI R+40
- Lane, TN R+74
- Leesville, MO R+65
- Leighton, TN D+26
- Camp Crook, SD R+88
- Florey, TX R+84
- Melcher, IA R+45
- Byrds Creek, WI R+27
- Stellar, TX R+67
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.