52301 leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About more than 99% of adults in 52301 typically vote, above the U.S. average of about 62%. Among adults in 52301, ~31% vote Democratic, ~68% Republican, and ~1% don't vote. The map below shows estimated turnout by block group.
How 52301 compares
Among zip codes within 15 miles, 52301 leans more Republican than 10 of 16 neighbors.
52301 runs about 24 points more Republican than Iowa as a whole.
Politics vary noticeably by block within 52301. The southwest side is the most Republican-leaning (R+45) and the southeast side is the least Republican-leaning (R+33), a spread of about 12 points.
Why 52301 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 52301, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 52301, about 96% of residents are non-Hispanic white, about 23 points above the U.S. average of 72%; about 14% of adults hold a bachelor's degree, about 10 points below the Iowa average of 24%.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; 52301, IA sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in 52301 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 52301 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 69%, about 9 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.