Calmar leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 84% of adults in Calmar typically vote, above the U.S. average of about 62%. Among adults in Calmar, ~28% vote Democratic, ~56% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How Calmar compares
Among cities within 25 miles, Calmar leans more Republican than 12 of 49 neighbors.
Calmar runs about 21 points more Republican than Iowa as a whole.
Why Calmar leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Calmar. The lean here lands roughly where demographic data alone would predict.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; Calmar, IA sits in the top tenth nationally on this measure.
Why turnout in Calmar looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Calmar 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%. High high-school completion lines up with higher turnout, and about 97% of adults in Calmar have completed high school, above 92% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Conover, IA R+36
- Spillville, IA R+34
- Fort Atkinson, IA R+37
- Festina, IA R+35
- Nordness, IA R+37
- Ossian, IA R+38
- St. Lucas, IA R+44
- Decorah, IA D+4
- Ridgeway, IA R+41
Cities with Similar Populations
- Scroggins, TX R+66
- Bertha, MN R+59
- Lloyd, FL R+36
- Fertile, MN R+35
- Brook, IN R+58
- Great River, NY R+17
- Bentleyville, OH D+20
- Fort Sumner, NM R+33
- Boley, OK R+40
- Fairview Park, IN R+47
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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.