Challenge leans Republican by roughly 20 points: about 40% of voters vote Democratic and 60% Republican.
About 79% of adults in Challenge typically vote, above the U.S. average of about 62%. Among adults in Challenge, ~32% vote Democratic, ~47% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How Challenge compares
Among cities within 25 miles, Challenge leans more Republican than 19 of 41 neighbors.
Challenge runs about 40 points more Republican than California as a whole. California leans Democratic overall, while Challenge is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Challenge. The southwest side is the most Republican-leaning (R+29) and the north side is the least Republican-leaning (R+10), a spread of about 18 points.
Why Challenge 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, not a ranked or complete list of what matters most.
Challenge votes against the grain of California. California leans Democratic overall, while Challenge runs about 40 points more Republican. Rural areas vote Republican, and Challenge sits in the bottom quarter on density (about 4%, below 83% of cities). Low college attainment predicts Republican voting, and Challenge sits in the bottom quarter (about 11%, below 90% of cities).
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Challenge, CA sits in the bottom quarter 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 Challenge looks the way it does
Turnout in Challenge 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
- Woodleaf, CA R+11
- Challenge-Brownsville, CA R+27
- Brownsville, CA R+23
- Dobbins, CA R+15
- Forbestown, CA R+25
- Clipper Mills, CA R+27
- Camptonville, CA R+10
- Rackerby, CA R+29
- North San Juan, CA D+7
- Oregon House, CA R+20
Cities with Similar Populations
- Abernant, AL R+78
- Yuba, WI R+26
- Advent, WV R+61
- Higginsport, OH R+66
- Reeves Crossing, DE R+35
- Lake Huntington, NY R+7
- Spencer Settlement, NY R+40
- South Windham, ME R+5
- Heaters, WV R+56
- Marshall, AK D+17
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.