59715 leans heavily Democratic by roughly 32 points: about 66% of voters vote Democratic and 34% Republican.
About 77% of adults in 59715 typically vote, above the U.S. average of about 62%. Among adults in 59715, ~51% vote Democratic, ~26% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How 59715 compares
59715 sits in a sparsely populated area with few comparable zip codes nearby.
59715 runs about 51 points more Democratic than Montana as a whole. Montana leans Republican overall, while 59715 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 59715. The west side is the most Democratic-leaning (D+45) and the northeast side is the least Democratic-leaning (D+9), a spread of about 36 points.
Why 59715 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 59715, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 67% of adults in 59715 hold a bachelor's degree, about 39 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 47% of adults in 59715 have never been married, above 93% of zip codes. 59715 runs against the grain of Montana, a Democratic-leaning pocket in a Republican-leaning state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 59715, MT sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 59715 looks the way it does
Areas with high high-school completion turn out at higher rates. About 98% of adults in 59715 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.