Fremont County leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 80% of adults in Fremont County typically vote, above the U.S. average of about 62%. Among adults in Fremont County, ~21% vote Democratic, ~59% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How Fremont County compares
Among counties within 50 miles, Fremont County leans more Republican than 10 of 14 neighbors.
Fremont County runs about 34 points more Republican than Iowa as a whole.
Why Fremont County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Fremont County, not a ranked or complete list of what matters most.
Rural areas with a high white share vote Republican. Fremont County sits in the bottom quarter on density and about 92% of residents are non-Hispanic white, about 20 points above the U.S. average of 72%.
Population density and Republican lean
Places with low population density tend to lean Republican; Fremont County, IA sits in the bottom tenth nationally on this measure.
Why turnout in Fremont County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Fremont County 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 68%, about 8 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Mills County, IA R+33
- Page County, IA R+39
- Otoe County, NE R+39
- Atchison County, MO R+59
- Nemaha County, NE R+45
- Cass County, NE R+42
- Montgomery County, IA R+41
- Sarpy County, NE R+10
- Pottawattamie County, IA R+18
- Johnson County, NE R+51
Counties with Similar Populations
- King and Queen County, VA R+28
- Clark County, MO R+60
- Buena Vista City, VA R+35
- Wolfe County, KY R+57
- Surry County, VA D+2
- Pershing County, NV R+52
- Hancock County, TN R+77
- Childress County, TX R+57
- La Salle County, TX R+13
- Rio Blanco County, CO R+46
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.