![]() Photo from Digital-Topo-Maps.com | Thornton, IL 60476 Post Office Location: 103 East Eleanor; Thornton, IL Year Post Office built: Town(s) Served: Thornton Acceptable City Names: Thornton Not Acceptable City Names: Sectional Service Facility: Chicago Southwest (South Suburban) County(ies): Cook Info on Thornton: Thornton is home to one of the largest quarries in the United States. It is home to about 2,582 residents (2000 census). Interstate 80, Interstate 294, Tri-State Tollway, and the Union Pacific Railroad pass through town. |
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