Reliez Valley leans heavily Democratic by roughly 34 points: about 67% of voters vote Democratic and 33% Republican.
About 71% of adults in Reliez Valley typically vote, above the U.S. average of about 62%. Among adults in Reliez Valley, ~48% vote Democratic, ~23% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How Reliez Valley compares
Among cities within 25 miles, Reliez Valley leans more Democratic than 24 of 74 neighbors.
Reliez Valley runs about 14 points more Democratic than California as a whole.
Why Reliez Valley leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Reliez Valley, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 81% of adults in Reliez Valley hold a bachelor's degree, about 52 points above the U.S. average of 28%. Dense areas vote Democratic, and Reliez Valley sits in the top fifth on density (about 64%, above 90% of cities).
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Reliez Valley, CA sits in the top tenth 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 Reliez Valley looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Reliez Valley 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 78%, about 18 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 95% of households in Reliez Valley own their home, about 20 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 99% of adults in Reliez Valley have completed high school, above 98% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Pleasant Hill, CA D+41
- Lafayette, CA D+48
- Martinez, CA D+30
- Walnut Creek, CA D+47
- Concord, CA D+33
- Castle Hill, CA D+41
- Orinda, CA D+54
- Moraga, CA D+49
- Orinda Village, CA D+58
- Alamo, CA D+20
Cities with Similar Populations
- North Truro, MA D+40
- Olpe, KS R+60
- Hubbard, IA R+44
- Rocky Hill, NJ D+41
- Woodhull, NY R+62
- Viborg, SD R+51
- Mountain, WI R+34
- Crosby, ND R+56
- Chesterfield, NH D+3
- Robinsonville, MS D+54
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.