The Colby Post Office is located in the state of Wisconsin within Marathon County. This location serves 3,455 Colby residents with a median income of $43,438. It's estimated that approximately 5,515 packages pass through this post office each year.
The Colby Post Office is located in the state of Wisconsin within Marathon County. This location serves 3,455 Colby residents with a median income of $43,438. It's estimated that approximately 5,515 packages pass through this post office each year.