Vital Statistics

Chicago Population... Median household income... Office vacancy rate...

Chicago population: 2.8 million

This story first appeared in the March 27, 2008 issue of WWD.  Subscribe Today.

Median household income: $43,223

Office vacancy rate: 17.8%

Number of businesses: 41,815

Snowfall this winter: 53 inches

Chicago average: 34 inches

Top Chicago-area employers: Abbott Laboratories, Allstate Insurance Co., U.S. Post Office, University of Chicago

Where the money is: About 17 billionaires call Chicago home, including Samuel Zell, Oprah Winfrey, William Wrigley Jr., Lester Crown and family and members of the Pritzker family.

Individuals who grew up or reside in Chicago: Barack Obama, Hillary Clinton, John Cusack, Jeremy Piven, Vince Vaughn, Kanye West, Common

On the agenda: A bid for the 2016 Summer Olympics.

Sources: U.S. Census Bureau, 2006 American Community Survey, Illinois DepARTMENT of Employment Security, U.S. DepARTMENT of Commerce, forbes.com, infoUSA