Aurora, a suburb of Chicago, is a city in DuPage, Kane, Kendall, and Will counties in the U.S. state of Illinois. Located primarily in DuPage and Kane counties, it is an outer suburb of Chicago and the second most populous city in the state, and the 114th most populous city in the country. The population was 197,899 at the 2010 census, and was estimated to have increased to 200,965 by 2017.
Once a mid-sized manufacturing city, Aurora has grown since the 1960s. Founded within Kane County, Aurora's city limits and population have expanded into DuPage, Will, and Kendall counties. Between 2000 an...
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