Hanley leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 75% of adults in Hanley typically vote, above the U.S. average of about 62%. Among adults in Hanley, ~21% vote Democratic, ~54% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How Hanley compares
Among cities within 25 miles, Hanley leans more Republican than 28 of 46 neighbors.
Hanley runs about 31 points more Republican than Iowa as a whole.
Why Hanley leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Hanley. The lean here lands roughly where demographic data alone would predict.
Food insecurity and voter turnout
Places with low food insecurity tend to turn out at a higher rate; Hanley, IA sits in the bottom tenth nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.
Why turnout in Hanley looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Hanley 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 72%, about 12 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in Hanley have completed high school, above 93% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- St. Charles, IA R+43
- St. Marys, IA R+40
- Truro, IA R+48
- Bevington, IA R+45
- East Peru, IA R+52
- Patterson, IA R+46
- Martensdale, IA R+39
- Peru, IA R+50
- New Virginia, IA R+45
- Prole, IA R+38
Cities with Similar Populations
- Rudyard, MT R+55
- Wallops Island, VA R+16
- Gurn Spring, NY R+8
- Vanderbilt, TX R+74
- Wanakah, NY R+9
- Harmonsburg, PA R+41
- Sunfish Lake, MN D+12
- Juliustown, NJ R+21
- Le Raysville, PA R+61
- Graphite, NC R+10
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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.