Yuba County leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About 53% of adults in Yuba County typically vote, below the U.S. average of about 62%. Among adults in Yuba County, ~22% vote Democratic, ~31% Republican, and ~47% don't vote. The map below shows estimated turnout by block group.
How Yuba County compares
Among counties within 50 miles, Yuba County leans more Republican than 6 of 8 neighbors.
Yuba County runs about 36 points more Republican than California as a whole. California leans Democratic overall, while Yuba County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Yuba County. The north side is the most Republican-leaning (R+43) and the west side is the least Republican-leaning (R+4), a spread of about 38 points.
Why Yuba County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Yuba County, not a ranked or complete list of what matters most.
Yuba County votes Republican even though it is densely developed (about 54%, about 18 points above the U.S. average of 36%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 71% of households in Yuba County are family households, above 84% of counties. Yuba County runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Never-married share, developed land, and voter turnout
Places that combine a never-married-heavy adult population and a heavily developed built environment tend to turn out at a lower rate, as Yuba County, CA does.
Why turnout in Yuba County looks the way it does
Renters vote less often than owners. About 36% of households in Yuba County rent, about 11 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 6% of homes in Yuba County have more than one occupant per room, above 94% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Sutter County, CA R+23
- Placer County, CA R+11
- Colusa County, CA R+20
- Nevada County, CA D+11
- Butte County, CA R+3
- Yolo County, CA D+35
- Sacramento County, CA D+20
- El Dorado County, CA R+13
- Glenn County, CA R+32
- Amador County, CA R+35
Counties with Similar Populations
- Payne County, OK R+18
- Cape Girardeau County, MO R+34
- Manitowoc County, WI R+24
- Leavenworth County, KS R+20
- Bulloch County, GA R+10
- Talladega County, AL R+27
- Lewis County, WA R+29
- Henderson County, TX R+60
- Wagoner County, OK R+40
- Bartholomew County, IN R+30
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.