50324 leans Democratic by roughly 26 points: about 63% of voters vote Democratic and 37% Republican.
About 94% of adults in 50324 typically vote, above the U.S. average of about 62%. Among adults in 50324, ~59% vote Democratic, ~35% Republican, and ~6% don't vote. The map below shows estimated turnout by block group.
How 50324 compares
Among zip codes within 15 miles, 50324 leans more Democratic than 27 of 33 neighbors.
50324 runs about 39 points more Democratic than Iowa as a whole. Iowa leans Republican overall, while 50324 is one of the few Democratic-leaning pockets.
Why 50324 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 50324, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 50324 live in densely developed areas, about 63 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 50324 sits in the top quarter (about 44%, above 85% of zip codes). 50324 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; 50324, 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 50324 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 50324 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 73%, about 13 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 99% of adults in 50324 have completed high school, above 97% of zip codes. 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.