59635 leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 86% of adults in 59635 typically vote, above the U.S. average of about 62%. Among adults in 59635, ~29% vote Democratic, ~57% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How 59635 compares
Among zip codes within 15 miles, 59635 leans more Republican than 4 of 5 neighbors.
59635 runs about 13 points more Republican than Montana as a whole.
Politics vary noticeably by block within 59635. The southeast side is the most Republican-leaning (R+44) and the south side is the least Republican-leaning (R+21), a spread of about 23 points.
Why 59635 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 59635. The lean here lands roughly where demographic data alone would predict.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 59635, MT sits below the national average on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 59635 looks the way it does
Turnout in 59635 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 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.