Challenge-Brownsville leans Republican by roughly 26 points: about 37% of voters vote Democratic and 63% Republican.
About 85% of adults in Challenge-Brownsville typically vote, above the U.S. average of about 62%. Among adults in Challenge-Brownsville, ~31% vote Democratic, ~54% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Challenge-Brownsville compares
Among cities within 25 miles, Challenge-Brownsville leans more Republican than 26 of 44 neighbors.
Challenge-Brownsville runs about 47 points more Republican than California as a whole. California leans Democratic overall, while Challenge-Brownsville is one of the few Republican-leaning pockets.
Why Challenge-Brownsville 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 Challenge-Brownsville, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 5% of residents in Challenge-Brownsville live in densely developed areas, about 53 points below the California average of 58%. Challenge-Brownsville runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Population density, never-married share, and Republican lean
Places that combine low population density and a never-married-heavy adult population tend to lean Republican, as Challenge-Brownsville, CA does.
Why turnout in Challenge-Brownsville looks the way it does
Turnout in Challenge-Brownsville 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
- Brownsville, CA R+23
- Forbestown, CA R+25
- Challenge, CA R+19
- Rackerby, CA R+29
- Woodleaf, CA R+11
- Clipper Mills, CA R+27
- Dobbins, CA R+15
- Feather Falls, CA R+29
- Oregon House, CA R+20
- Bangor, CA R+35
Cities with Similar Populations
- Ashby, VA R+35
- Raworth, MS R+34
- Mount Hamill, IA R+46
- Catarina, TX Even
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.