. . "815/779" . "The city of Morris is the county seat of Grundy County, Illinois, United States. The population was 13,636 at the 2010 census, making it the largest community in Grundy County.While not technically within the corporate limits of the city, Dresden Nuclear Power Plant, which provides a substantial portion of the electricity supply for the Chicago metropolitan area, has a Morris mailing address."@en . "160.02"^^ . . "60450" . "Morris"@en . . . . . . . "13636"^^ . . .