The Spencer Post Office is located in the state of Iowa within Clay County. This location serves 12,691 Spencer residents with a median income of $46,669. It's estimated that approximately 20,256 packages pass through this post office each year.
The Spencer Post Office is located in the state of Iowa within Clay County. This location serves 12,691 Spencer residents with a median income of $46,669. It's estimated that approximately 20,256 packages pass through this post office each year.