Treasure County is a Republican stronghold. About 17% of voters here vote Democratic and 83% Republican.
About 70% of adults in Treasure County typically vote, above the U.S. average of about 62%. Among adults in Treasure County, ~12% vote Democratic, ~58% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How Treasure County compares
Treasure County sits in a sparsely populated area with few comparable counties nearby.
Treasure County runs about 46 points more Republican than Montana as a whole.
Why Treasure 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 Treasure County, not a ranked or complete list of what matters most.
Rural areas with a high white share vote Republican. Treasure County sits in the bottom quarter on density and about 93% of residents are non-Hispanic white, about 10 points above the Montana average of 83%.
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 Treasure County, MT does.
Why turnout in Treasure County looks the way it does
Areas with high high-school completion turn out at higher rates. About 95% of adults in Treasure County have completed high school, about 5 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Rosebud County, MT R+20
- Big Horn County, MT Even
- Musselshell County, MT R+64
- Custer County, MT R+43
- Yellowstone County, MT R+25
- Petroleum County, MT R+69
- Garfield County, MT R+87
- Golden Valley County, MT R+69
- Powder River County, MT R+72
- Prairie County, MT R+68
Counties with Similar Populations
- Terrell County, TX R+65
- Keya Paha County, NE R+82
- Kent County, TX R+79
- Wheeler County, NE R+72
- Hinsdale County, CO R+6
- Clark County, ID R+65
- Esmeralda County, NV R+61
- Logan County, NE R+83
- Hooker County, NE R+79
- Slope County, ND R+74
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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.