Crestline leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 69% of adults in Crestline typically vote, above the U.S. average of about 62%. Among adults in Crestline, ~31% vote Democratic, ~38% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How Crestline compares
Among cities within 25 miles, Crestline leans more Republican than 24 of 59 neighbors.
Crestline runs about 30 points more Republican than California as a whole. California leans Democratic overall, while Crestline is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Crestline. The southwest side runs the most Democratic (Even) and the northwest side runs the most Republican (R+19), a spread of about 21 points.
Why Crestline 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 Crestline, not a ranked or complete list of what matters most.
Crestline votes Republican even though it is densely developed (about 42%, well below the California average of 58%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Crestline 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; Crestline, CA sits in the top quarter nationally on this measure.
Why turnout in Crestline looks the way it does
Turnout in Crestline 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
- Cedarpines Park, CA R+20
- Twin Peaks, CA R+23
- Rimforest, CA R+18
- Devore Hghts, CA D+3
- Blue Jay, CA R+16
- Crest Park, CA R+19
- Lake Arrowhead, CA R+24
- Skyforest, CA R+18
- Cedar Glen, CA R+32
- San Bernardino, CA D+18
Cities with Similar Populations
- Geneseo, NY D+15
- Elfers, FL R+26
- Prince Frederick, MD R+14
- Lighthouse Point, FL R+21
- Lakeport, CA R+7
- Pearsall, TX R+6
- Cleves, OH R+48
- Alden, NY R+29
- Hamlet, NC R+7
- Brookville, OH R+51
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.