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

By the BestNeighborhood data science team. Last updated May 2026.

Marysville leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.

 

About 50% of adults in Marysville typically vote, below the U.S. average of about 62%. Among adults in Marysville, ~22% vote Democratic, ~28% Republican, and ~50% don't vote. The map below shows estimated turnout by block group.

How Marysville compares

Among cities within 25 miles, Marysville leans more Republican than 4 of 41 neighbors.

Marysville runs about 32 points more Republican than California as a whole. California leans Democratic overall, while Marysville is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Marysville. The south side runs the most Democratic (D+4) and the northwest side runs the most Republican (R+25), a spread of about 29 points.

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

Marysville votes Republican even though it is densely developed (about 68%, modestly above the California average of 58%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Marysville runs against the grain of California, a Republican-leaning pocket in a Democratic-leaning state.

High-school completion, developed land, and voter turnout

Places that combine low high-school-completion share and a heavily developed built environment tend to turn out at a lower rate, as Marysville, CA does.

Why turnout in Marysville looks the way it does

Renters vote less often than owners. About 50% of households in Marysville rent, about 25 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 22% of adults in Marysville report food insecurity, above 85% of cities. Learn more about the findings and methodology on the political spectrum map.

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.