![]() Photo from Digital-Topo-Maps.com | Quincy, IL 62301 Post Office Location: 200 North 8th Street Suite 1/1300 Harrison Street/3700 Broadway Street/3535 Locust Street; Quincy, IL Year Post Office built: Town(s) Served: Quincy Acceptable City Names: Quincy Not Acceptable City Names: Burton, Marbelhead Sectional Service Facility: Quincy, IL County(ies): Adams Info on Quincy: The City of Quincy it the county seat of Adams County. It is served by Interstate 172, Strieby Expressway, U.S. 24, Illinois 57, Illinois 96, Illinois 104, the BNSF Railway, and the Mississippi River. Quincy is known as the "Gem City". The area was settled around 1825. |
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