Quartz leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 72% of adults in Quartz typically vote, above the U.S. average of about 62%. Among adults in Quartz, ~24% vote Democratic, ~47% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How Quartz compares
Among cities within 25 miles, Quartz leans more Republican than 27 of 36 neighbors.
Quartz runs about 52 points more Republican than California as a whole. California leans Democratic overall, while Quartz is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Quartz. The west side is the most Republican-leaning (R+49) and the northeast side is the least Republican-leaning (R+25), a spread of about 24 points.
Why Quartz 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 Quartz, not a ranked or complete list of what matters most.
Quartz votes against the grain of California. California leans Democratic overall, while Quartz runs about 52 points more Republican. Low college attainment predicts Republican voting, and Quartz sits in the bottom quarter (about 10%, below 93% of cities).
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Quartz, CA sits in the top quarter 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 Quartz looks the way it does
Turnout in Quartz sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Jamestown, CA R+23
- Tuttletown, CA R+25
- Keystone, CA D+24
- Sonora, CA R+17
- Chinese Camp, CA R+49
- Columbia, CA R+18
- Phoenix Lake, CA R+27
- Vallecito, CA R+15
- Copperopolis, CA R+41
- Soulsbyville, CA R+30
Cities with Similar Populations
- Saxe, VA R+30
- South Barnstead, NH R+22
- Glenwood, NY R+33
- Callands, VA R+37
- Glenray, WV R+51
- Midway, IN R+50
- Fenwick Hills, SC Even
- Olga, WA D+58
- West College Corner, IN R+59
- Walnut, IA R+43
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.