Harrison is a Republican stronghold. About 20% of voters here vote Democratic and 80% Republican.
About 83% of adults in Harrison typically vote, above the U.S. average of about 62%. Among adults in Harrison, ~17% vote Democratic, ~66% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How Harrison compares
Among cities within 25 miles, Harrison leans more Republican than 15 of 16 neighbors.
Harrison runs about 40 points more Republican than Montana as a whole.
Why Harrison 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 Harrison, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 82% of households in Harrison are family households, about 15 points above the U.S. average of 67%.
Population density and Republican lean
Places with low population density tend to lean Republican; Harrison, MT sits in the bottom tenth nationally on this measure.
Why turnout in Harrison looks the way it does
Turnout in Harrison sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Pony, MT R+60
- Summit Valley, MT R+60
- Willow Creek, MT R+52
- Norris, MT R+56
- Red Bluff, MT R+51
- Cardwell, MT R+59
- Jefferson Island, MT R+58
- Mc Allister, MT R+51
- Three Forks, MT R+46
- Whitehall, MT R+54
Cities with Similar Populations
- Popejoy, IA R+53
- Lovells, MI R+40
- Dell, AR R+64
- Swinton, MO R+72
- Spring Creek, MS R+74
- Shunk, PA R+62
- Looneyville, WV R+61
- Lumaghi Heights, IL R+20
- Gausdale, KY R+80
- Leadpoint, WA R+42
All Local Stats
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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.