About the town » Oak Park, Cook County, Illinois, United States

Oak Park is a village adjacent to the western side of the city of Chicago in Cook County, Illinois, United States. It is the 29th largest municipality in Illinois as measured by population, and has easy access to downtown Chicago due to public transportation such as the Chicago 'L' Blue and Green lines, CTA buses, and Metra commuter rail. The 2000 census showed that the village had a total population of 52,524. As of the 2010 census, the population had dropped by 1.2 percent to 51,878.