59003 is a true toss-up. About 50% of voters here vote Democratic and 50% Republican.
About 55% of adults in 59003 typically vote, below the U.S. average of about 62%. Among adults in 59003, ~27% vote Democratic, ~28% Republican, and ~45% don't vote. The map below shows estimated turnout by block group.
How 59003 compares
59003 runs about 19 points more Democratic than Montana as a whole.
Politics vary noticeably by block within 59003. The northwest side runs the most Democratic (D+45) and the southeast side runs the most Republican (R+72), a spread of about 117 points.
Why 59003 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 59003. The lean here lands roughly where demographic data alone would predict.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; 59003, MT sits in the bottom tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 59003 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 59003 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 50%, about 12 points below the Montana average of 62%. Renters vote less often than owners, and about 58% of households in 59003 rent, compared to around 33% in nearby zip codes. High food insecurity lines up with lower turnout, and about 32% of adults in 59003 report food insecurity, above 95% of zip codes. 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.