Scarsdale leans Democratic by roughly 26 points: about 63% of voters vote Democratic and 37% Republican.
About 89% of adults in Scarsdale typically vote, above the U.S. average of about 62%. Among adults in Scarsdale, ~56% vote Democratic, ~33% Republican, and ~11% don't vote. The map below shows estimated turnout by block group.
How Scarsdale compares
Scarsdale runs about 15 points more Democratic than Illinois as a whole.
Politics vary noticeably by block within Scarsdale. The northwest side is the most Democratic-leaning (D+36) and the south side is the least Democratic-leaning (D+17), a spread of about 19 points.
Why Scarsdale 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 Scarsdale, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Scarsdale live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Scarsdale sits in the top quarter (about 67%, above 88% of neighborhoods).
Developed land and Democratic lean
Places with a heavily developed built environment tend to lean Democratic; Scarsdale, Arlington Heights, IL sits in the top quarter nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Scarsdale looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Scarsdale 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 74%, about 14 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Winston Park, Palatine, IL D+18
- Woodlands at Fiore, Buffalo Grove, IL D+26
- Edison Park, Chicago, IL D+5
- O'Hare, Chicago, IL R+8
- Norwood Park, Chicago, IL Even
- Gladstone, Chicago, IL D+23
- Forest Glen, Chicago, IL D+25
- Orchard Meadows, Mundelein, IL D+15
- Dunning, Chicago, IL Even
- Colonial Gardens, Chicago, IL D+20
Neighborhoods with Similar Populations
- Lakeshore at University Park, Miramar, FL D+58
- Santa Clara Street, Hayward, CA D+39
- Sunset Arcre-Garden Valley-Morningside, Shreveport, LA D+80
- Northwest Los Angeles Heights, San Antonio, TX D+32
- Prides Crossing, Aurora, CO D+13
- Hyde Park, Jacksonville, FL D+31
- Presidio Heights, San Francisco, CA D+72
- Boulevard Heights, St. Louis, MO D+25
- Englewood, Jacksonville, FL R+5
- Emerson Garfield, Spokane, WA D+21
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.