US Census: Chicago Population Dips Below 1920 Level

The migration away from the city was accelerated by the recent recession, as explosive growth of suburbs far outside of Chicago resulted in some counties growing by as much as 35%.

1 minute read

February 17, 2011, 7:00 AM PST

By Victor Negrete


From The Wall Street Journal:

"The population of Cook County, which is dominated by the city of Chicago, fell 3.4% during the decade. But it remained by far the state's most populous county, with about 5.2 million people. The explosive growth of suburbs far outside Chicago produced huge gains in neighboring counties. Kane County grew by 27.5%, Will County by nearly 35% and Lake County by 9.2%, while DuPage grew a more modest 1.4%."

Kevin Helliker, of The Wall Street Journal, explains that "the exodus took a big chunk out of the city's black population in particular, shrinking it to 887,608 from 1,065,009."

"This population shift to traditionally conservative counties could alter the balance of power in both the state house and the Illinois congressional delegation."

Wednesday, February 16, 2011 in The Wall Street Journal

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

June 11, 2025 - Diana Ionescu

Rendering of Shirley Chisholm Village four-story housing development with person biking in front.

San Francisco's School District Spent $105M To Build Affordable Housing for Teachers — And That's Just the Beginning

SFUSD joins a growing list of school districts using their land holdings to address housing affordability challenges faced by their own employees.

June 8, 2025 - Fast Company

Yellow single-seat Japanese electric vehicle drivign down road.

The Tiny, Adorable $7,000 Car Turning Japan Onto EVs

The single seat Mibot charges from a regular plug as quickly as an iPad, and is about half the price of an average EV.

June 6, 2025 - PC Magazine

White Waymo autonomous car driving fast down city street with blurred background at night.

Seattle's Plan for Adopting Driverless Cars

Equity, safety, accessibility and affordability are front of mind as the city prepares for robotaxis and other autonomous vehicles.

2 hours ago - Smart Cities Dive

Two small wooden one-story homes in Florida with floodwaters at their doors.

As Trump Phases Out FEMA, Is It Time to Flee the Floodplains?

With less federal funding available for disaster relief efforts, the need to relocate at-risk communities is more urgent than ever.

4 hours ago - Governing

People riding bicycles on separated bike trail.

With Protected Lanes, 460% More People Commute by Bike

For those needing more ammo, more data proving what we already knew is here.

6 hours ago - UNM News