Mount Union leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 85% of adults in Mount Union typically vote, above the U.S. average of about 62%. Among adults in Mount Union, ~24% vote Democratic, ~61% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Mount Union compares
Among cities within 25 miles, Mount Union leans more Republican than 25 of 57 neighbors.
Mount Union runs about 30 points more Republican than Iowa as a whole.
Why Mount Union leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Mount Union, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 86% of residents in Mount Union drive to work alone, about 13 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 77% of households in Mount Union are family households, above 81% of cities.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Mount Union, IA sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Mount Union looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in Mount Union 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 Cities
- Winfield, IA R+35
- Yarmouth, IA R+52
- Swedesburg, IA R+46
- Mount Pleasant, IA R+24
- New London, IA R+35
- Pleasant Grove, IA R+50
- Olds, IA R+46
- Morning Sun, IA R+45
- Westwood, IA R+47
- Wyman, IA R+46
Cities with Similar Populations
- Steamburg, MI R+43
- Meeks, GA R+78
- O'neil, WV R+42
- Talmoon, MN R+23
- Horseshoe Beach, FL R+75
- Craftsbury Common, VT R+14
- Kurthwood, LA R+77
- Equality, AL R+70
- Junction City, GA D+11
- Burns, NY R+55
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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.