Butte Valley leans Republican by roughly 24 points: about 38% of voters vote Democratic and 62% Republican.
About 60% of adults in Butte Valley typically vote, near the U.S. average of about 62%. Among adults in Butte Valley, ~23% vote Democratic, ~37% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How Butte Valley compares
Among cities within 25 miles, Butte Valley leans more Republican than 15 of 38 neighbors.
Butte Valley runs about 45 points more Republican than California as a whole. California leans Democratic overall, while Butte Valley is one of the few Republican-leaning pockets.
Why Butte 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 Butte Valley, not a ranked or complete list of what matters most.
Butte Valley votes against the grain of California. California leans Democratic overall, while Butte Valley runs about 45 points more Republican.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Butte Valley, CA sits above the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Butte Valley looks the way it does
Turnout in Butte Valley 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
- Pentz, CA R+36
- Paradise, CA R+19
- Yankee Hill, CA R+23
- Honcut, CA R+41
- Oregon City, CA R+41
- Durham, CA R+23
- Nelson, CA R+36
- Thermalito, CA R+25
- Oroville, CA R+21
- Concow, CA R+26
Cities with Similar Populations
- Gardiner, WA D+25
- Jeffers, MT R+44
- Milners Corner, IN R+55
- Mount Airy, TN R+69
- Luther, IN R+66
- Shoals, WV R+54
- Harpersfield, OH R+41
- West Bottom, VA Even
- Del Bonita, MT D+8
- Pilgrimham, PA R+58
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.