The Millcreek Post Office is located in the state of Illinois within Union County. This location serves 65 Millcreek residents with a median income of $51,250. It's estimated that approximately 104 packages pass through this post office each year.
The Millcreek Post Office is located in the state of Illinois within Union County. This location serves 65 Millcreek residents with a median income of $51,250. It's estimated that approximately 104 packages pass through this post office each year.