Clermont leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 81% of adults in Clermont typically vote, above the U.S. average of about 62%. Among adults in Clermont, ~26% vote Democratic, ~55% Republican, and ~19% don't vote. The map below shows estimated turnout by block group.
How Clermont compares
Among cities within 25 miles, Clermont leans more Republican than 19 of 53 neighbors.
Clermont runs about 23 points more Republican than Iowa as a whole.
Why Clermont leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Clermont. The lean here lands roughly where demographic data alone would predict.
Population density and Republican lean
Places with low population density tend to lean Republican; Clermont, IA sits below the national average on this measure.
Why turnout in Clermont looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Clermont 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 67%, about 7 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 91% of households in Clermont own their home, about 16 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 96% of adults in Clermont have completed high school, above 83% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Elgin, IA R+35
- Gunder, IA R+41
- Castalia, IA R+37
- West Union, IA R+26
- Postville, IA R+33
- Luana, IA R+36
- Ossian, IA R+38
- Wadena, IA R+38
- Festina, IA R+35
Cities with Similar Populations
- Epsilon, MI R+21
- Three Churches, WV R+63
- New Martinsburg, OH R+66
- Townville, PA R+57
- Seman, AL R+68
- Russell Gardens, NY D+22
- Rocky Comfort, MO R+71
- Dupont, IN R+58
- Hawkins, MI R+49
- Spokane, MO R+67
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.