Colonial Gardens, Chicago, IL Political Map | Democrat & Republican Areas in Colonial Gardens

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

Colonial Gardens leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.

 

About 61% of adults in Colonial Gardens typically vote, near the U.S. average of about 62%. Among adults in Colonial Gardens, ~36% vote Democratic, ~24% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.

How Colonial Gardens compares

Among neighborhoods within 5 miles, Colonial Gardens leans more Democratic than 6 of 32 neighbors.

Colonial Gardens runs about 9 points more Democratic than Illinois as a whole.

Politics vary noticeably by block within Colonial Gardens. The northeast side is the most Democratic-leaning (D+33) and the northwest side is the least Democratic-leaning (D+6), a spread of about 27 points.

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

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

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Colonial Gardens, Chicago, IL sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.

Why turnout in Colonial Gardens looks the way it does

Turnout in Colonial Gardens 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.