This office does not issue business licenses. To obtain a license, contact the City Hall in the city where the business will be conducted. (or click here for a listing). For a business to be conducted in an unincorporated area of the County, contact the Los Angeles County Business License office at (213) 974-0093.
Chicago is the largest city in the state and the third most populous city in the United States, with its 2010 population of 2,695,598. The U.S. Census Bureau currently lists seven other cities with populations of over 100,000 within Illinois.
Illinois Population Up 3.3 Percent in 2010 Census. Illinois Remains 5th Largest State in Nation, Cook County Remains the 2nd Largest County in the Nation, Chicago Remains 3rd Largest City in the Nation. Illinois 2010 census results show over 12.8 million (12,830,632) people live in Illinois, up 3.3 percent since 2000.