Fallon County is a Republican stronghold. About 14% of voters here vote Democratic and 86% Republican.
About more than 99% of adults in Fallon County typically vote, above the U.S. average of about 62%. Among adults in Fallon County, ~14% vote Democratic, ~87% Republican, and ~-1% don't vote. The map below shows estimated turnout by block group.
How Fallon County compares
Among counties within 50 miles, Fallon County leans more Republican than 2 of 5 neighbors.
Fallon County runs about 51 points more Republican than Montana as a whole.
Why Fallon 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 Fallon County, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 12% of residents in Fallon County live in densely developed areas, about 24 points below the U.S. average of 36%. A high white share with below-average college attainment predicts Republican voting, and Fallon County fits that profile on both counts.
High-school completion, developed land, and voter turnout
Places that combine high-school-completion-heavy adults and a rural land-use pattern tend to turn out at a higher rate, as Fallon County, MT does.
Why turnout in Fallon County looks the way it does
Areas with high high-school completion turn out at higher rates. More than 99% of adults in Fallon County have completed high school, about 6 points above the Montana average of 94%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Golden Valley County, ND R+69
- Wibaux County, MT R+75
- Slope County, ND R+74
- Bowman County, ND R+65
- Carter County, MT R+78
- Prairie County, MT R+68
- Dawson County, MT R+55
- Harding County, SD R+88
- Billings County, ND R+67
- Custer County, MT R+43
Counties with Similar Populations
- Lipscomb County, TX R+84
- Harlan County, NE R+69
- Nelson County, ND R+43
- Crockett County, TX R+39
- Bowman County, ND R+65
- Shackelford County, TX R+74
- Woodson County, KS R+55
- Stanley County, SD R+49
- Kinney County, TX R+32
- Sherman County, NE R+64
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Sources and methodology
Precinct-level voting records used to fit the model come from Montana 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.