Chicago is one of the fast growing cities in Unite states as the population has grown to three million. The city has about forty languages spoken by over 1000 people. Half of the population of Chicago lives in the metropolitan area.

The density of population in the city is 12, 750.3 people per square mile, thus making the city one of the most densely populated city in United States. There are 1,152, 868 housing units at an average density of 5075.8 per square mile.

http://www.city-data.com/city/Chicago-Illinois.html

http://wiki.answers.com/Q/What_is_the_population_of_Chicago_Illinois

There are many airlines offering promotional packages to customers for travelling to Chicago. The best deals can be made at some of the best reliable operators only.

You can save money when you book a Chicago Vacation Package. The best deals in booking travel vacation plans can be found at:

http://www.orbitz.com/flight-info/

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http://www.YatraBooking.co.in/India_US_Flights

Customers can also save up to 40% on Airfares by visiting this site.

http://www.lowfares.com/Cheap-Flights