Montrose, Chicago, IL Political Map | Democrat & Republican Areas in Montrose

By the BestNeighborhood data science team. Last updated May 2026.

Montrose leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.

 

About 63% of adults in Montrose typically vote, near the U.S. average of about 62%. Among adults in Montrose, ~44% vote Democratic, ~19% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.

How Montrose compares

Among neighborhoods within 5 miles, Montrose leans more Democratic than 20 of 42 neighbors.

Montrose runs about 29 points more Democratic than Illinois as a whole.

Why Montrose 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 Montrose, not a ranked or complete list of what matters most.

Dense areas vote Democratic. More than 99% of residents in Montrose live in densely developed areas, about 64 points above the U.S. average of 36%.

Paved land cover and Democratic lean

Places with extensive paved surfaces tend to lean Democratic; Montrose, Chicago, IL sits in the top 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 Montrose looks the way it does

Turnout in Montrose sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.

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.