![]() Photo from Digital-Topo-Maps.com | Carthage, IL 62321 Post Office Location: 615 Main Street; Carthage, IL Year Post Office built: Town(s) Served: Carthage Acceptable City Names: Carthage Not Acceptable City Names: Bentley, Denver, Fountain Green, Harmony, Mc Call, Webster Sectional Service Facility: Quincy, IL County(ies): Hancock Info on Hamilton: The City of Carthage is the county seat of Hancock County. It is served by U.S. 136, Illinois 94, Illinois 110, and Illinois 336. This city was plotted out in 1838. It was home of Carthage College, which is now located in Kenosha, Wisconsin, from 1870 to 1964. |
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