Coralville, IA Political Map | Democrat & Republican Areas in Coralville

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

Coralville leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.

 

About 78% of adults in Coralville typically vote, above the U.S. average of about 62%. Among adults in Coralville, ~56% vote Democratic, ~22% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.

How Coralville compares

Among cities within 25 miles, Coralville leans more Democratic than 50 of 52 neighbors.

Coralville runs about 57 points more Democratic than Iowa as a whole. Iowa leans Republican overall, while Coralville is one of the few Democratic-leaning pockets.

Politics vary noticeably by neighborhood within Coralville. The west side is the most Democratic-leaning (D+56) and the northwest side is the least Democratic-leaning (D+27), a spread of about 29 points.

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

Dense areas vote Democratic. About 81% of residents in Coralville live in densely developed areas, about 44 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Coralville sits in the top quarter (about 57%, above 96% of cities). Coralville runs against the grain of Iowa, a Democratic-leaning pocket in a Republican-leaning state.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Coralville, IA sits in the top tenth 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 Coralville looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Coralville 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 96% of adults in Coralville have completed high school, above 82% 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 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.