Millerton is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.
About 79% of adults in Millerton typically vote, above the U.S. average of about 62%. Among adults in Millerton, ~18% vote Democratic, ~61% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How Millerton compares
Among cities within 25 miles, Millerton leans more Republican than 27 of 43 neighbors.
Millerton runs about 42 points more Republican than Iowa as a whole.
Why Millerton 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 Millerton, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 5% of residents in Millerton live in densely developed areas, about 12 points below the Iowa average of 16%.
Population density and Republican lean
Places with low population density tend to lean Republican; Millerton, IA sits in the bottom quarter nationally on this measure.
Why turnout in Millerton looks the way it does
Homeowners vote more often than renters. About 91% of households in Millerton own their home, about 9 points above the Iowa average of 81%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Derby, IA R+52
- Russell, IA R+53
- Corydon, IA R+52
- Chariton, IA R+38
- Humeston, IA R+56
- Le Roy, IA R+56
- Promise City, IA R+58
- Lucas, IA R+52
- Harvard, IA R+60
- Allerton, IA R+62
Cities with Similar Populations
- Weches, TX R+81
- Zetus, MS R+73
- Nettleton, MO R+68
- Hinch, MO R+65
- New Alluwe, OK R+66
- Good Hope, TN R+68
- Navina, OK R+61
- Hunts Corner, ME R+11
- West Mineral, KS R+67
- Rosboro, AR R+72
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.