Harlem leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 49% of adults in Harlem typically vote, below the U.S. average of about 62%. Among adults in Harlem, ~29% vote Democratic, ~19% Republican, and ~52% don't vote. The map below shows estimated turnout by block group.
How Harlem compares
Among cities within 25 miles, Harlem is the most Democratic-leaning.
Harlem runs about 40 points more Democratic than Montana as a whole. Montana leans Republican overall, while Harlem is one of the few Democratic-leaning pockets.
Politics vary noticeably by neighborhood within Harlem. The southeast side runs the most Democratic (D+64) and the southwest side runs the most Republican (R+66), a spread of about 130 points.
Why Harlem leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Harlem, not a ranked or complete list of what matters most.
Areas with many never-married adults vote Democratic. About 49% of adults in Harlem have never been married, well above similar-sized cities (around 29%). Harlem runs against the grain of Montana, a Democratic-leaning pocket in a Republican-leaning state.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Harlem, MT sits in the bottom tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Harlem looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Harlem 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 46%, about 16 points below the Montana average of 62%. Renters vote less often than owners, and about 42% of households in Harlem rent, about 17 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 37% of adults in Harlem report food insecurity, above 98% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Savoy, MT D+14
- Zurich, MT R+66
- Chinook, MT R+39
- Hogeland, MT R+53
- Dodson, MT R+60
- Turner, MT R+53
- Landusky, MT R+41
- Lodge Pole, MT D+49
- Lohman, MT R+60
- Hays, MT D+50
Cities with Similar Populations
- Elliston, VA R+40
- Lake Success, NY D+11
- Westworth Village, TX R+27
- Linden, TX R+50
- Lakeview Heights, KY R+44
- Albrightsville, PA R+21
- Casselton, ND R+41
- Roseland, LA D+6
- La Grange, CA R+45
- New Milford, PA R+49
All Local Stats
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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.