![]() | Dwight, IL 60420 Post Office Location: 100 East Mazon Street; Dwight, IL Year Post Office built: Town(s) Served: Dwight Acceptable City Names: Dwight Not Acceptable City Names: Sectional Service Facility: Chicago Southwest (South Suburban) County(ies): Grundy, Livingston Info on Dwight: The Village of Dwight is located in Northern Livingston County and Southern Grundy County. This sits on the intersection of Illinois 17, Illinois 47, Historical U.S. Rt. 66, and Interstate 55. The Union Pacific Railroad and Norfolk Southern Railroads cross at this town. Dwight is home to several historical attractions that are linked to Historical U.S. Rt. 66. |
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