Morning Sun leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 99% of adults in Morning Sun typically vote, above the U.S. average of about 62%. Among adults in Morning Sun, ~28% vote Democratic, ~71% Republican, and ~1% don't vote. The map below shows estimated turnout by block group.
How Morning Sun compares
Among cities within 25 miles, Morning Sun leans more Republican than 30 of 49 neighbors.
Morning Sun runs about 32 points more Republican than Iowa as a whole.
Why Morning Sun 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 Morning Sun, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 90% of residents in Morning Sun drive to work alone, about 16 points above the U.S. average of 74%. Low college attainment predicts Republican voting, and Morning Sun sits in the bottom quarter (about 14%, below 83% of cities). A high family-household share predicts Republican voting, and about 75% of households in Morning Sun are family households, above 76% of cities.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Morning Sun, IA sits above the national average on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Morning Sun looks the way it does
Turnout in Morning Sun sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Northfield, IA R+50
- Wapello, IA R+39
- Yarmouth, IA R+52
- Kossuth, IA R+28
- Winfield, IA R+35
- Mediapolis, IA R+30
- Mount Union, IA R+43
- Pleasant Grove, IA R+50
- Swedesburg, IA R+46
- Oakville, IA R+48
Cities with Similar Populations
- Grays Prairie, TX R+68
- New Milton, WV R+71
- Confluence, PA R+56
- Farmdale, OH R+52
- Cedarview, UT R+84
- Redwater, TX R+79
- Diablo, CA D+15
- Lapine, AL R+56
- Santa Anna, TX R+70
- Chatham, LA R+62
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.