The Sumner Post Office is located in the state of Iowa within Bremer County. This location serves 3,555 Sumner residents with a median income of $52,656. It's estimated that approximately 5,674 packages pass through this post office each year.
The Sumner Post Office is located in the state of Iowa within Bremer County. This location serves 3,555 Sumner residents with a median income of $52,656. It's estimated that approximately 5,674 packages pass through this post office each year.