52045 leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 83% of adults in 52045 typically vote, above the U.S. average of about 62%. Among adults in 52045, ~27% vote Democratic, ~57% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How 52045 compares
Among zip codes within 15 miles, 52045 leans more Republican than 5 of 14 neighbors.
52045 runs about 22 points more Republican than Iowa as a whole.
Politics vary noticeably by block within 52045. The south side is the most Republican-leaning (R+43) and the west side is the least Republican-leaning (R+31), a spread of about 12 points.
Why 52045 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 52045. The lean here lands roughly where demographic data alone would predict.
Adult tooth loss and voter turnout
Places with a low adult tooth-loss rate tend to turn out at a higher rate; 52045, IA sits in the bottom quarter nationally on this measure. Tooth loss does not drive turnout; it reflects age, income, and healthcare access.
Why turnout in 52045 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 52045 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%. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.