Sheridan leans heavily Republican by roughly 46 points: about 27% of voters vote Democratic and 73% Republican.
About 63% of adults in Sheridan typically vote, near the U.S. average of about 62%. Among adults in Sheridan, ~17% vote Democratic, ~46% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How Sheridan compares
Among cities within 25 miles, Sheridan leans more Republican than 53 of 56 neighbors.
Sheridan runs about 67 points more Republican than California as a whole. California leans Democratic overall, while Sheridan is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Sheridan. The east side is the most Republican-leaning (R+50) and the northeast side is the least Republican-leaning (R+29), a spread of about 21 points.
Why Sheridan 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 Sheridan, not a ranked or complete list of what matters most.
Sheridan votes against the grain of California. California leans Democratic overall, while Sheridan runs about 67 points more Republican. A high family-household share predicts Republican voting, and about 88% of households in Sheridan are family households, above 98% of cities.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Sheridan, 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 Sheridan looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Sheridan is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 70%, about 10 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Sheridan have completed high school, above 88% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Wheatland, CA R+37
- Beale Afb, CA R+16
- Lincoln, CA R+17
- Rio Oso, CA R+52
- Trowbridge, CA R+55
- Plumas Lake, CA R+26
- Penryn, CA R+32
- Hammonton, CA R+30
- Olivehurst, CA R+11
- Newcastle, CA R+29
Cities with Similar Populations
- Dasher, GA R+64
- Russells Point, OH R+41
- Knotts Island, NC R+61
- Middleberg, OK R+70
- Clarkrange, TN R+68
- Maroa, IL R+50
- Skeels, MI R+45
- Brushton, NY R+39
- Clyattville, GA R+49
- Arkport, NY R+50
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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.