Sycamore leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 50% of adults in Sycamore typically vote, below the U.S. average of about 62%. Among adults in Sycamore, ~15% vote Democratic, ~35% Republican, and ~50% don't vote. The map below shows estimated turnout by block group.
How Sycamore compares
Among cities within 25 miles, Sycamore leans more Republican than 22 of 30 neighbors.
Sycamore runs about 61 points more Republican than California as a whole. California leans Democratic overall, while Sycamore is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Sycamore. The west side is the most Republican-leaning (R+49) and the southwest side is the least Republican-leaning (R+31), a spread of about 18 points.
Why Sycamore 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 Sycamore, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 4% of residents in Sycamore live in densely developed areas, about 54 points below the California average of 58%. Sycamore runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.
Population density and Republican lean
Places with low population density tend to lean Republican; Sycamore, CA sits in the bottom quarter nationally on this measure.
Why turnout in Sycamore looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Sycamore is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 41% of households in Sycamore rent, about 16 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 23% of adults in Sycamore report food insecurity, above 87% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Grimes, CA R+33
- Meridian, CA R+49
- Sutter, CA R+47
- Kirkville, CA R+39
- Yuba City, CA R+20
- Arbuckle, CA R+19
- Dunnigan, CA R+19
- Robbins, CA R+40
- Colusa, CA R+26
- Olivehurst, CA R+11
Cities with Similar Populations
- Clear Lake, OK R+84
- Cashel, ND R+64
- Matoy, OK R+75
- Mayburg, PA R+48
- Pickens, WV R+67
- Harshasville, OH R+68
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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.