50054 leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 91% of adults in 50054 typically vote, above the U.S. average of about 62%. Among adults in 50054, ~31% vote Democratic, ~60% Republican, and ~9% don't vote. The map below shows estimated turnout by block group.
How 50054 compares
Among zip codes within 15 miles, 50054 leans more Republican than 5 of 12 neighbors.
50054 runs about 19 points more Republican than Iowa as a whole.
Politics vary noticeably by block within 50054. The north side is the most Republican-leaning (R+45) and the west side is the least Republican-leaning (R+27), a spread of about 18 points.
Why 50054 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 50054. The lean here lands roughly where demographic data alone would predict.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as 50054, IA does.
Why turnout in 50054 looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in 50054 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 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.