The Allen Post Office is located in the state of Maryland within Somerset County. This location serves 487 Allen residents with a median income of $95,625. It's estimated that approximately 777 packages pass through this post office each year.
The Allen Post Office is located in the state of Maryland within Somerset County. This location serves 487 Allen residents with a median income of $95,625. It's estimated that approximately 777 packages pass through this post office each year.