Frankfort is a village in Will and Cook counties, Illinois, United States. The population was 17,782 at the 2010 census, up from 10,391 in 2000. According to Forbes.com, in 2007 the village ranked as the 36th fastest growing suburb in the United States.
The name "Frankfort" was taken from Frankfort Township as designated by the governing board of Will County. It was commonly known as "Frankfort Station" after the opening of the Joliet & Northern Indiana Railroad through the township in 1855, though the official plat of the community dated March 1855 shows the name as "Frankfort".Property deed abstracts and railroad documents also show that the name was always Frankfort. Local residents incorporated Frankfort as a village in 1879.
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