South Beloit, IL 61080The Mail Box > South Beloit, IL 61080


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South Beloit, IL 61080

Post Office Location: 311 Oak Grove Avenue; South Beloit, IL
Year Post Office built:
Town(s) Served: South Beloit
Acceptable City Names: South Beloit
Not Acceptable City Names: Beloit
Sectional Service Facility: Rockford
County(ies): Boone, Winnebago

Info on South Beloit:

The City of South Beloit is right on the Illinois/Wisconsin State Line. This is also the city limits between Beloit, Wisconsin and South Beloit, Illinois. The city became official in 1917.

Looking at the South Beloit Post Office. (December, 2013)