Belmont leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.
About 82% of adults in Belmont typically vote, above the U.S. average of about 62%. Among adults in Belmont, ~49% vote Democratic, ~34% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How Belmont compares
Belmont runs about 8 points more Democratic than Illinois as a whole.
Politics vary noticeably by block within Belmont. The east side is the most Democratic-leaning (D+27) and the south side is the least Democratic-leaning (D+14), a spread of about 13 points.
Why Belmont leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Belmont, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 62% of adults in Belmont hold a bachelor's degree, about 34 points above the U.S. average of 28%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Belmont, Downers Grove, IL sits in the top quarter 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 Belmont looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Belmont is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 73%, about 13 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in Belmont have completed high school, above 86% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Lace, Darien, IL D+6
- Yorkfield, Elmhurst, IL D+16
- Valley View, Glen Ellyn, IL D+5
- Frontenac, Aurora, IL D+26
- Tall Grass, Naperville, IL D+19
- Garfield Ridge, Chicago, IL Even
- Samuel A Rothermel, Oak Park, IL D+73
- Clearing, Chicago, IL D+6
- Edmund F Burton, Oak Park, IL D+75
- Ellsworth, Elmwood Park, IL D+7
Neighborhoods with Similar Populations
- Coquina Key, St. Petersburg, FL D+35
- Summit Heights, Fontana, CA D+8
- Bluemound Heights, Milwaukee, WI D+36
- 45th and Moncrief, Jacksonville, FL D+78
- Downtown East, Minneapolis, MN D+65
- Peacock Village, Peoria, AZ R+17
- Westbury, Lehi, UT R+25
- Westland Terrace, Pine Hills, FL D+70
- Downtown Grand Forks, Grand Forks, ND D+12
- Rickarby, Mobile, AL D+72
Sources and methodology
Precinct-level voting records used to fit the model come from Illinois State Board of 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.