50327 leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 84% of adults in 50327 typically vote, above the U.S. average of about 62%. Among adults in 50327, ~38% vote Democratic, ~46% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How 50327 compares
Among zip codes within 15 miles, 50327 leans more Republican than 18 of 29 neighbors.
Politically, 50327 sits close to the rest of Iowa.
Politics vary noticeably by block within 50327. The north side runs the most Democratic (Even) and the southeast side runs the most Republican (R+25), a spread of about 25 points.
Why 50327 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 50327, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 76% of households in 50327 are family households, about 9 points above the U.S. average of 67%.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; 50327, IA sits in the top tenth nationally on this measure.
Why turnout in 50327 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 50327 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 68%, about 8 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 99% of adults in 50327 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.