59255 leans Democratic by roughly 28 points: about 64% of voters vote Democratic and 36% Republican.
About 73% of adults in 59255 typically vote, above the U.S. average of about 62%. Among adults in 59255, ~47% vote Democratic, ~26% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How 59255 compares
59255 runs about 47 points more Democratic than Montana as a whole. Montana leans Republican overall, while 59255 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 59255. The southwest side runs the most Democratic (D+35) and the southeast side runs the most Republican (R+40), a spread of about 76 points.
Why 59255 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 59255, not a ranked or complete list of what matters most.
59255 votes against the grain of Montana. Montana leans Republican overall, while 59255 runs about 47 points more Democratic. A high never-married share predicts Democratic voting, and about 63% of adults in 59255 have never been married, above 98% of zip codes.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 59255, MT sits in the bottom quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 59255 looks the way it does
Limited routine healthcare access lines up with lower turnout, and 59255 sits in the bottom quarter on routine-care measures. 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.