Marysville leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 76% of adults in Marysville typically vote, above the U.S. average of about 62%. Among adults in Marysville, ~20% vote Democratic, ~56% Republican, and ~24% 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 21 of 47 neighbors.
Marysville runs about 36 points more Republican than Iowa as a whole.
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.
Areas with a high white share and below-average college attainment vote Republican. In Marysville, about 97% of residents are non-Hispanic white, about 25 points above the U.S. average of 72%; about 12% of adults hold a bachelor's degree, about 12 points below the Iowa average of 24%. Car-dependent areas vote Republican, and about 87% of residents in Marysville drive to work alone, above 87% of cities.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Marysville, IA sits in the bottom quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Marysville looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in Marysville have completed high school, about 6 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Hamilton, IA R+51
- Lovilia, IA R+47
- Bussey, IA R+52
- Weller, IA R+48
- Hiteman, IA R+46
- Attica, IA R+51
- Tracy, IA R+50
- Pershing, IA R+50
- Georgetown, IA R+48
- Olivet, IA R+53
Cities with Similar Populations
- Rosette, UT R+85
- Kapulena, HI D+23
- Brixey, MO R+71
- Brandon, VA R+37
- Gilmore, AR R+4
- Del Rio, AZ R+34
- Messengerville, NY R+37
- Ely, TX R+76
- Glen Hope, PA R+63
- Hillcrest, WI R+14
Sources and methodology
Precinct-level voting records used to fit the model come from Iowa 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.