59071 leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 84% of adults in 59071 typically vote, above the U.S. average of about 62%. Among adults in 59071, ~26% vote Democratic, ~58% Republican, and ~16% don't vote. The map below shows estimated turnout by block group.
How 59071 compares
Among zip codes within 15 miles, 59071 leans more Republican than 1 of 3 neighbors.
59071 runs about 17 points more Republican than Montana as a whole.
Politics vary noticeably by block within 59071. The northeast side is the most Republican-leaning (R+44) and the south side is the least Republican-leaning (R+24), a spread of about 20 points.
Why 59071 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 59071, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 78% of households in 59071 are family households, about 12 points above the U.S. average of 67%. Rural areas with a high white share vote Republican. Non-Hispanic white share in 59071 is about 93%, about 21 points above the U.S. average of 72%.
Population density and Republican lean
Places with low population density tend to lean Republican; 59071, MT sits in the bottom tenth nationally on this measure.
Why turnout in 59071 looks the way it does
Areas with high high-school completion turn out at higher rates. About 98% of adults in 59071 have completed high school, about 8 points above the U.S. average of 90%. Homeowners vote more often than renters, and about 88% of households in 59071 own their home, above 81% of zip codes. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
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.