Bonner leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 77% of adults in Bonner typically vote, above the U.S. average of about 62%. Among adults in Bonner, ~30% vote Democratic, ~47% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How Bonner compares
Among cities within 25 miles, Bonner leans more Republican than 6 of 15 neighbors.
Politically, Bonner sits close to the rest of Montana.
Politics vary noticeably by neighborhood within Bonner. The west side runs the most Democratic (D+16) and the southeast side runs the most Republican (R+31), a spread of about 48 points.
Why Bonner 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 Bonner, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 4% of residents in Bonner live in densely developed areas, about 10 points below the Montana average of 13%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Bonner, MT sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Bonner looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in Bonner have completed high school, about 7 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Twin Creeks, MT R+13
- Milltown, MT R+3
- Clinton, MT R+24
- Potomac, MT R+31
- Missoula, MT D+25
- Turah, MT R+44
- Ravenna, MT R+44
- Orchard Homes, MT D+3
- Greenough, MT R+29
Cities with Similar Populations
- Yenome, SC R+29
- Valley Center, MI R+55
- South Plymouth, NY R+48
- Leigh, TX R+14
- Lakeside, WA R+27
- Lamont, OK R+71
- Reyno, AR R+72
- Pilgrims Knob, VA R+71
- Braithwaite, LA D+28
- Choestoe, GA R+64
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.