59215 is a Republican stronghold. About 15% of voters here vote Democratic and 85% Republican.
About 78% of adults in 59215 typically vote, above the U.S. average of about 62%. Among adults in 59215, ~12% vote Democratic, ~66% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How 59215 compares
59215 runs about 50 points more Republican than Montana as a whole.
Politics vary noticeably by block within 59215. The northwest side is the most Republican-leaning (R+77) and the south side is the least Republican-leaning (R+66), a spread of about 11 points.
Why 59215 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 59215. The lean here lands roughly where demographic data alone would predict.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; 59215, 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 59215 looks the way it does
Areas with high high-school completion turn out at higher rates. About 98% of adults in 59215 have completed high school, about 8 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.