50465 leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 90% of adults in 50465 typically vote, above the U.S. average of about 62%. Among adults in 50465, ~26% vote Democratic, ~64% Republican, and ~10% don't vote. The map below shows estimated turnout by block group.
How 50465 compares
Among zip codes within 15 miles, 50465 leans more Republican than 5 of 10 neighbors.
50465 runs about 30 points more Republican than Iowa as a whole.
Why 50465 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 50465, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 14% of adults in 50465 hold a bachelor's degree, about 10 points below the Iowa average of 24%. A high family-household share predicts Republican voting, and about 80% of households in 50465 are family households, above 91% of zip codes.
Population density, never-married share, and Republican lean
Places that combine low population density and a never-married-heavy adult population tend to lean Republican, as 50465, IA does.
Why turnout in 50465 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 50465 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 67%, about 7 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 97% of households in 50465 own their home, about 22 points above the U.S. average of 75%. 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.