The 10 Most Liberal Cities In Illinois For 2026

The most liberal cities in Illinois are Chicago and Elgin for 2026 based on Saturday Night Science.

In this article, we will explore some of the most liberal cities in Illinois, where progressive ideas and inclusive attitudes flourish.

If you’re looking to move to Illinois and want to know where the majority of Illinoisans lean left, you’ve come to the right place.

Specifically, we wanted to know which cities have the highest number of liberal voters in the Prairie State.

To do so, we analyzed how the people in each city in Illinois with a population greater than 5,000 voted during the last presidential election. The cities with the highest percentage of voters who voted Democrat were named the most liberal cities in the state.

Not sold on Illinois? Take the two-minute Find Your Place quiz and see which state actually fits you.

57

No. 57 most liberal place in Illinois

Chicago, IL

2,711,226 peopleSnackAbility 7/10
7/10
Chicago, IL
Source: Flickr User ::RodrixParedes:: | CC BY 2.0
74.3% Democrat vote · #57 most liberal in Illinois
Map of Chicago within Illinois Located in DuPage County, Illinois

Chicago or ), officially the City of Chicago, is the third-most populous city in the United States. With over 2.7million residents, it is also the most populous city in both the state of Illinois and the Midwestern United States. It is the county seat of Cook County. The Chicago metropolitan area, often referred to as Chicagoland, has nearly 10million people and is the third-largest in the United States. Chicago has often been called a global architecture capital and is considered one of the most important business centers in the world.

57

No. 57 most liberal place in Illinois

Summit, IL

10,846 peopleSnackAbility 5/10
5/10
74.3% Democrat vote · #57 most liberal in Illinois
Map of Summit within Illinois Located in Cook County, Illinois
57

No. 57 most liberal place in Illinois

Barrington, IL

11,077 peopleSnackAbility 10/10
10/10
Barrington, IL
Source: Public domain
74.3% Democrat vote · #57 most liberal in Illinois
Map of Barrington within Illinois Located in Lake County, Illinois

Barrington is an affluent suburban village in Cook County and Lake County, Illinois, United States. The population was 10,327 at the 2010 census. Located approximately 32 miles northwest of Chicago, the area features wetlands, forest preserves, parks, and horse trails in a country-suburban setting.

57

No. 57 most liberal place in Illinois

Burr Ridge, IL

11,141 peopleSnackAbility 10/10
10/10
Burr Ridge, IL
Source: Flickr User Teemu008 | CC BY-SA 2.0
74.3% Democrat vote · #57 most liberal in Illinois
Map of Burr Ridge within Illinois Located in DuPage County, Illinois

Burr Ridge is a suburb of Chicago, in Cook and DuPage counties, Illinois, United States. The village is listed among the top wealthiest towns in Illinois and is locally known for its large beautiful residences. The population was 10,559 at the 2010 census.

57

No. 57 most liberal place in Illinois

Markham, IL

11,355 peopleSnackAbility 5/10
5/10
74.3% Democrat vote · #57 most liberal in Illinois
Map of Markham within Illinois Located in Cook County, Illinois

Markham is a suburban city in Cook County, Illinois, United States. The population was 12,508 at the 2010 census.

57

No. 57 most liberal place in Illinois

River Forest, IL

11,992 peopleSnackAbility 10/10
10/10
River Forest, IL
Source: Flickr User rchdj10 | CC BY-ND 2.0
74.3% Democrat vote · #57 most liberal in Illinois
Map of River Forest within Illinois Located in Cook County, Illinois
57

No. 57 most liberal place in Illinois

Palos Heights, IL

12,152 peopleSnackAbility 10/10
10/10
Palos Heights, IL
Source: Flickr User corsi photo | CC BY 2.0
74.3% Democrat vote · #57 most liberal in Illinois
Map of Palos Heights within Illinois Located in Cook County, Illinois

Palos Heights is a city in Cook County, Illinois, United States. Palos Heights students can readily commute to Moraine Valley Community College in nearby Palos Hills. Moraine Valley serves the local residents through classes, seminars, lectures, concerts, plays, and other activities. Trinity Christian College is also located in Palos Heights.

57

No. 57 most liberal place in Illinois

Justice, IL

12,324 peopleSnackAbility 6/10
6/10
Justice, IL
Source: Wikipedia User MrHarman at en.wikipedia | GFDL
74.3% Democrat vote · #57 most liberal in Illinois
Map of Justice within Illinois Located in Cook County, Illinois
57

No. 57 most liberal place in Illinois

Winnetka, IL

12,484 peopleSnackAbility 10/10
10/10
Winnetka, IL
Source: Wikipedia User anarchosyn | CC BY-SA 2.0
74.3% Democrat vote · #57 most liberal in Illinois
Map of Winnetka within Illinois Located in Cook County, Illinois

Winnetka is a village in Cook County, Illinois, United States, located 16 miles north of downtown Chicago. The population was 12,187 at the 2010 census. The village is one of the wealthiest places in the nation in terms of household income, and the richest in Illinois.

57

No. 57 most liberal place in Illinois

Northlake, IL

12,513 peopleSnackAbility 8/10
8/10
74.3% Democrat vote · #57 most liberal in Illinois
Map of Northlake within Illinois Located in Cook County, Illinois

The receipts

Compare the top ten

Pick a metric. The bars rescale. The red line is Illinois’s statewide median.

City % Democrat vs IL
57 Chicago 0.7434776690447412
57 Summit 0.7434776690447412
57 Barrington 0.7434776690447412
57 Burr Ridge 0.7434776690447412
57 Markham 0.7434776690447412
57 River Forest 0.7434776690447412
57 Palos Heights 0.7434776690447412
57 Justice 0.7434776690447412
57 Winnetka 0.7434776690447412
57 Northlake 0.7434776690447412
City Population vs IL
57 Chicago 2,711,226
57 Summit 10,846
57 Barrington 11,077
57 Burr Ridge 11,141
57 Markham 11,355
57 River Forest 11,992
57 Palos Heights 12,152
57 Justice 12,324
57 Winnetka 12,484
57 Northlake 12,513

On the map

Mapping the liberal strongholds in Illinois

Saturday Night Science

How we determined the most liberal cities in Illinois for 2026

To find the most liberal places in Illinois, we used Saturday Night Science – the argument you’d make at a bar – to find the cities with the most liberals.

We started by making a list of every city in Illinois over 5,000 people based on the 2020-2024 American Community Survey. That left us with 330 cities and towns.

We then measured the voting record and MIT election data to determine which places lean the most leftward in their allegiances by:

  • Percentage Of Votes For Democratic President In 2020

Because no voting data exists at the city level, we used county-level election results from the 2020 election. We assigned every city in a county the percentage of votes that went to the Democrats, effectively extending the county’s results to the city level. In cases where larger cities encompassed an entire county, the election outcomes accurately reflected the city’s political landscape.

The winner, Chicago, is “The Most liberal City in Illinois For 2026”. The most conservative place in Illinois was Vandalia.

We updated this article for 2026. This report is our eleventh time ranking the most liberal places to live in Illinois.

The full plate

Most Liberal Places In Illinois

Click any column to sort. Search by city name.

RankCityPopulation% Liberal
57Chicago2,711,22674.3%
57Summit10,84674.3%
57Barrington11,07774.3%
57Burr Ridge11,14174.3%
57Markham11,35574.3%
57River Forest11,99274.3%
57Palos Heights12,15274.3%
57Justice12,32474.3%
57Winnetka12,48474.3%
57Northlake12,51374.3%
57Richton Park12,52174.3%
57Lincolnwood13,11274.3%
57Worth10,70074.3%
57Western Springs13,44674.3%
57Hazel Crest13,79274.3%
57Forest Park13,94374.3%
57Midlothian13,94874.3%
57Chicago Ridge14,09974.3%
57Hickory Hills14,52674.3%
57Norridge15,43974.3%
57Prospect Heights15,61874.3%
57La Grange15,99874.3%
57Country Club Hills16,32474.3%
57Westchester16,43674.3%
57Bridgeview16,84974.3%
57La Grange Park13,44774.3%
57Crestwood10,57974.3%
57River Grove10,45174.3%
57Riverdale10,34074.3%
57South Barrington5,02174.3%
57Berkeley5,19974.3%
57Posen5,29274.3%
57Northfield5,48774.3%
57Willow Springs5,86874.3%
57Countryside6,26774.3%
57Orland Hills6,71974.3%
57Calumet Park6,85574.3%
57Stickney6,95274.3%
57North Riverside7,24974.3%
57Inverness7,27574.3%
57University Park7,30674.3%
57Broadview7,89674.3%
57Oak Brook8,05674.3%
57Hillside8,08474.3%
57Crete8,38674.3%
57Glenwood8,60374.3%
57Glencoe8,70174.3%
57Harwood Heights8,82174.3%
57Riverside9,03974.3%
57Lynwood9,08374.3%
57Flossmoor9,39174.3%
57Steger9,41874.3%
57Sauk Village9,67874.3%
57Lyons10,33974.3%
57Hinsdale17,17574.3%
57Lemont17,82074.3%
57Schiller Park11,39374.3%
57Franklin Park18,19774.3%
57Northbrook34,58574.3%
57Calumet City35,10074.3%
57Hanover Park36,73274.3%
57Wheeling38,43374.3%
57Park Ridge38,66774.3%
57Streamwood39,00174.3%
57Bartlett40,50174.3%
57Buffalo Grove42,89174.3%
57Elmhurst45,67174.3%
57Glenview47,75274.3%
57Hoffman Estates51,17574.3%
57Oak Park53,29274.3%
57Tinley Park54,84274.3%
57Mount Prospect55,47274.3%
57Berwyn55,59574.3%
57Oak Lawn56,86174.3%
57Orland Park57,91674.3%
57Des Plaines59,15674.3%
57Skokie66,21974.3%
57Palatine66,29374.3%
57Palos Hills18,08174.3%
57Evanston76,34074.3%
57Schaumburg76,86874.3%
57Cicero82,79774.3%
57Elgin114,93474.3%
57Woodridge33,94174.3%
57Elk Grove Village31,98774.3%
57Arlington Heights76,00574.3%
57Burbank28,73974.3%
57Niles30,06474.3%
57Bellwood18,25674.3%
57Alsip18,58374.3%
57Bensenville18,60374.3%
57Matteson18,64574.3%
57Homewood19,29474.3%
57Brookfield19,33174.3%
57Deerfield19,51874.3%
57Harvey20,23074.3%
57Frankfort20,65174.3%
57Dolton20,82574.3%
57South Holland20,91174.3%
57Park Forest21,15674.3%

Source: county-level 2020 election results, U.S. Census ACS 2020-2024. 330 cities with more than 5,000 residents.

Summary

Summing Up The Liberal Snowflakes in Illinois

Well, there you have it, the places in Illinois that have the highest number of liberals per capita, with Chicago ranking as the least conservative in the entire state.

The most liberal cities in Illinois are Chicago, Summit, Barrington, Burr Ridge, Markham, River Forest, Palos Heights, Justice, Winnetka, and Northlake.

If you’re curious, here are the least liberal cities in Illinois. Wondering how Chicago stacks up against a bigger name? See Chicago, IL vs. Atlanta, GA side by side.

Nick Johnson
About the author

Nick Johnson earned his masters in Business Administration from the Drucker School At Claremont Graduate University. He has written for 39 publications across the country and ran the media relations department at Movoto, a real estate portal based in San Francisco. He has been featured in over 500 publications as an expert in real estate and as an authority on real estate trends.

Nick's the creator of the HomeSnacks YouTube channel that now has over 900,000 subscribers and is an excellent source to learn about different parts of the country.

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