Onyx leans Republican by roughly 24 points: about 38% of voters vote Democratic and 62% Republican.
About 44% of adults in Onyx typically vote, below the U.S. average of about 62%. Among adults in Onyx, ~17% vote Democratic, ~27% Republican, and ~56% don't vote. The map below shows estimated turnout by block group.
How Onyx compares
Among cities within 25 miles, Onyx leans more Republican than 2 of 12 neighbors.
Onyx runs about 45 points more Republican than California as a whole. California leans Democratic overall, while Onyx is one of the few Republican-leaning pockets.
Why Onyx 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 Onyx, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. Fewer than 1% of adults in Onyx hold a bachelor's degree, about 35 points below the California average of 35%. Rural areas vote Republican, and Onyx sits in the bottom quarter on density (fewer than 1%, in the bottom fraction of cities). Onyx runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Onyx, CA sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Onyx looks the way it does
Renters vote less often than owners. About 45% of households in Onyx rent, about 20 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 13% of homes in Onyx have more than one occupant per room, above 98% of cities. Low high-school completion lines up with lower turnout, and about 76% of adults in Onyx have completed high school, below 95% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Weldon, CA R+42
- Johnsondale, CA R+21
- Mountain Mesa, CA R+47
- Kernville, CA R+17
- Lake Isabella, CA R+38
- Wofford Heights, CA R+43
- Pearsonville, CA R+33
- Bodfish, CA R+38
- Inyokern, CA R+40
- Little Lake, CA R+42
Cities with Similar Populations
- Hubbard Springs, VA R+65
- Hinchman, MI R+4
- Blackland, MS R+84
- Long Island, VA R+26
- Partridge, KS R+62
- Cuney, TX R+65
- Samaria, SC R+70
- East Williamson, NY R+25
- Rome, ME R+29
- Harshaville, PA R+49
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.