Winfield leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About more than 99% of adults in Winfield typically vote, above the U.S. average of about 62%. Among adults in Winfield, ~35% vote Democratic, ~75% Republican, and ~-10% don't vote. The map below shows estimated turnout by block group.
How Winfield compares
Among cities within 25 miles, Winfield leans more Republican than 10 of 52 neighbors.
Winfield runs about 22 points more Republican than Iowa as a whole.
Why Winfield 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 Winfield, not a ranked or complete list of what matters most.
Winfield votes Republican even though it is densely developed (about 30%, modestly above the Iowa average of 16%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
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 Winfield, IA does.
Why turnout in Winfield looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Winfield 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 70%, about 10 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Swedesburg, IA R+46
- Wyman, IA R+46
- Olds, IA R+46
- Mount Union, IA R+43
- Crawfordsville, IA R+44
- Morning Sun, IA R+45
- Columbus City, IA R+25
- Cotter, IA R+46
- Noble, IA R+46
- Yarmouth, IA R+52
Cities with Similar Populations
- Olene, OR R+49
- Valley Lee, MD R+14
- Waterloo, MI R+16
- Coral, MI R+48
- Blue River, WI R+27
- Hopewell, PA R+75
- East Hazel Crest, IL D+65
- Massieville, OH R+58
- Alburg, VT R+21
- Goldvein, VA R+39
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.