Glenn, CA Political Map | Democrat & Republican Areas in Glenn

Glenn is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.

 
Glenn, CA block-group political-lean map
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About 59% of adults in Glenn typically vote, near the U.S. average of about 62%. Among adults in Glenn, ~11% vote Democratic, ~49% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.

Glenn, CA block-group voter-turnout map
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How Glenn compares

Among cities within 25 miles, Glenn is the most Republican-leaning.

Glenn runs about 84 points more Republican than California as a whole. California leans Democratic overall, while Glenn is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Glenn. The west side is the most Republican-leaning (R+70) and the northeast side is the least Republican-leaning (R+48), a spread of about 21 points.

Why Glenn 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 Glenn, not a ranked or complete list of what matters most.

Glenn votes against the grain of California. California leans Democratic overall, while Glenn runs about 84 points more Republican.

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 Glenn, CA does.

Why turnout in Glenn looks the way it does

Renters vote less often than owners. About 36% of households in Glenn rent, about 12 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 6% of homes in Glenn have more than one occupant per room, above 91% of cities. Learn more about the findings and methodology on the political spectrum map.

Cities with Similar Populations

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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.