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Post Office Location: 116 Emma Avenue; Dupo, IL
Year Post Office built:
Town(s) Served: Dupo
Acceptable City Names: Dupo
Not Acceptable City Names:
Sectional Service Facility: St. Louis (Southeast)
County(ies): St. Clair
Info on Dupo:
The Village of Dupo is located southeast of Downtown St. Louis. It is along Interstate 255, U.S. 50, and Illinois 3. Dupo is home to a Union Pacific rail yard. This area was settled in 1750 and became a town in 1876.
