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Post Office Location: 463 Louisa; Illiopolis, IL
Year Post Office built:
Town(s) Served: Illiopolis
Acceptable City Names: Illiopolis
Not Acceptable City Names:
Sectional Service Facility: Springfield (East)
County(ies): Logan, Macon, Sangamon
Info on Illiopolis:
The Village of Illiopolis is in Eastern Sangamon County. This is on Old U.S. 36, and the Norfolk Southern railroad. Illiopolis is the site of the former Sangamon Ordnance Plant. It was in operation during World War II. The land used for the site was all sold back to local farmers by 1948. Several buildings from the site still stand (as of 2008). On April 23, 2004 the Formosa Plastics Plant exploded causing the town to be exacuated as the fire burned for several days.
