Thayer leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 83% of adults in Thayer typically vote, above the U.S. average of about 62%. Among adults in Thayer, ~22% vote Democratic, ~61% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How Thayer compares
Among cities within 25 miles, Thayer leans more Republican than 12 of 36 neighbors.
Thayer runs about 36 points more Republican than Iowa as a whole.
Why Thayer 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 Thayer, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 82% of households in Thayer are family households, about 16 points above the U.S. average of 67%. A high white share with below-average college attainment predicts Republican voting, and Thayer fits that profile on both counts.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Thayer, IA sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Thayer looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Thayer 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 69%, about 9 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 94% of households in Thayer own their home, about 19 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Afton, IA R+44
- Murray, IA R+56
- Arispe, IA R+50
- Lorimor, IA R+49
- Ellston, IA R+53
- Shannon City, IA R+51
- Tingley, IA R+54
- Grand River, IA R+46
- Beaconsfield, IA R+53
- Macksburg, IA R+52
Cities with Similar Populations
- Seven Mile Ford, VA R+55
- Old Bennington, VT D+39
- Leon, WI R+37
- Namur, WI R+28
- Naftel, AL R+53
- Salt Sulphur Springs, WV R+58
- Twin Lakes, OH R+3
- Lanesboro, IA R+57
- Vedin Corner, SD R+56
- Bridgeton, NC R+44
All Local Stats
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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.