The Du Bois Post Office is located in the state of Illinois within Washington County. This location serves 573 Du Bois residents with a median income of $46,000. It's estimated that approximately 915 packages pass through this post office each year.
The Du Bois Post Office is located in the state of Illinois within Washington County. This location serves 573 Du Bois residents with a median income of $46,000. It's estimated that approximately 915 packages pass through this post office each year.