Sweet Grass is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.
About 67% of adults in Sweet Grass typically vote, near the U.S. average of about 62%. Among adults in Sweet Grass, ~12% vote Democratic, ~55% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Sweet Grass compares
Among cities within 25 miles, Sweet Grass leans more Republican than 3 of 5 neighbors.
Sweet Grass runs about 44 points more Republican than Montana as a whole.
Why Sweet Grass leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Sweet Grass, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 2% of residents in Sweet Grass live in densely developed areas, about 11 points below the Montana average of 13%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Sweet Grass, MT sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Sweet Grass looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Sweet Grass is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Sunburst, MT R+62
- Glacier Colony, MT R+60
- Kevin, MT R+64
- Oilmont, MT R+61
- Santa Rita, MT R+65
- Cut Bank, MT R+24
- Little Browning, MT D+71
- Galata, MT R+62
- Ethridge, MT R+60
- Del Bonita, MT D+8
Cities with Similar Populations
- Alvadore, OR R+20
- Esmond, ND R+43
- Jugtown, MD R+37
- Angola on the Lake, NY R+20
- Patoutville, LA R+32
- Montell, TX R+63
- Gray Mountain, AZ D+36
- Washoe, MT R+19
- Blue Clay Farms, NC R+13
- Greenwich, KS R+44
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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.