Peosta leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 80% of adults in Peosta typically vote, above the U.S. average of about 62%. Among adults in Peosta, ~26% vote Democratic, ~54% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How Peosta compares
Among cities within 25 miles, Peosta leans more Republican than 13 of 60 neighbors.
Peosta runs about 22 points more Republican than Iowa as a whole.
Politics vary noticeably by neighborhood within Peosta. The southeast side is the most Republican-leaning (R+42) and the northeast side is the least Republican-leaning (R+26), a spread of about 16 points.
Why Peosta 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 Peosta, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 82% of households in Peosta are family households, about 15 points above the U.S. average of 67%.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Peosta, 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 Peosta looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Peosta 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 71%, about 11 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Centralia, IA R+37
- Graf, IA R+36
- Asbury, IA R+18
- Epworth, IA R+36
- Durango, IA R+35
- Dubuque, IA Even
- Sageville, IA R+31
- Farley, IA R+39
- Rickardsville, IA R+42
- Bernard, IA R+43
Cities with Similar Populations
- Riceville, TN R+68
- Leavittsburg, OH R+10
- Lake Providence, LA D+44
- Batesburg, SC R+58
- Sloatsburg, NY R+12
- Dwight, IL R+25
- Meyersdale, PA R+55
- Star City, AR R+61
- Shickshinny, PA R+47
- New Franken, WI R+30
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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.