As of 2007, Joliet's population was 145,800.
According to census.gov, the 2007 population estimate for Effingham, Illinois is 12,452.
According to census.gov, the 2007 population density estimate of Illinois is 232 people per square mile.
According to census.gov, the 2007 ACS population estimate for Quincy, Illinois, is 40,069.
According to census.gov, the 2007 ACS population of New Athens, Illinois, is 2,004.
According to census.gov, the 2007 population estimate for DuPage County, Illinois is 929,192.
According to census.gov, the 2007 population estimate for Mount Prospect, Illinois, is 53,711.
According to census.gov, The 2007 ACS population estimate for Aurora, Colorado, is 311,794.
What is Illinois's population
The closest is Florida, with a population of 18,251,243 as of 2007. The second closest is Illinois, with a population of 12,852,548.
The population of Owens-Illinois is 24,000.
The population of Southern Illinois is 1,200,000.