Anderson leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 64% of adults in Anderson typically vote, near the U.S. average of about 62%. Among adults in Anderson, ~20% vote Democratic, ~44% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How Anderson compares
Among cities within 25 miles, Anderson leans more Republican than 7 of 26 neighbors.
Anderson runs about 56 points more Republican than California as a whole. California leans Democratic overall, while Anderson is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Anderson. The southeast side is the most Republican-leaning (R+47) and the south side is the least Republican-leaning (R+30), a spread of about 18 points.
Why Anderson 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 Anderson, not a ranked or complete list of what matters most.
Anderson votes Republican even though it is densely developed (about 50%, modestly below the California average of 58%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Low college attainment predicts Republican voting, and Anderson sits in the bottom quarter (about 15%, below 77% of cities). Anderson runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Anderson, CA sits in the top quarter nationally on this measure.
Why turnout in Anderson looks the way it does
Turnout in Anderson 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
- Olinda, CA R+44
- Cottonwood, CA R+46
- Balls Ferry, CA R+50
- Palo Cedro, CA R+42
- Redding, CA R+25
- Hooker, CA R+48
- Gas Point, CA R+51
- Millville, CA R+44
- Shasta, CA R+35
- Keswick, CA R+41
Cities with Similar Populations
- Bethany, OK R+5
- Manheim, PA R+35
- Georgetown, SC Even
- Warrenton, VA R+7
- Columbia Heights, MN D+35
- Cameron, NC R+18
- Sycamore, IL Even
- Ellijay, GA R+59
- Amherst, OH R+14
- Easton, MD D+4
All Local Stats
Home Services
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.