Oak Park is a neighbouring city of Chicago, located around nine miles to the west of the city from its Downtown region. Oak Park is almost a suburb, and is located in the Cook County in Illinois. This city is an immediate neighbour of Chicago to its west.

For people travelling between the two cities, there is a very efficient system of public transportation which gives easy access from Oak Park to the Loop region of Chicago in the downtown area. The city is based along the coast of lake Michigan.

Oak Park has a population of 52,524 as per the census taken in 2000.

http://en.wikipedia.org/wiki/Oak_Park,_Illinois

http://www.worldtravelguide.net/city/

The 'Dollar Rent-a-Car' service would be a good choice. They are one of the car companies that offer airport transportation in Chicago between the 'Chicago O Hare Airport'.

The most perfect way to find out about their services is to log on to their website and run a search by giving the airport name and the dates on which you want their services.

http://www.dollar.com/Reservations/AllCars.aspx