The Sidney Post Office is located in the state of Michigan within Montcalm County. This location serves 927 Sidney residents with a median income of $39,792. It's estimated that approximately 1,480 packages pass through this post office each year.
The Sidney Post Office is located in the state of Michigan within Montcalm County. This location serves 927 Sidney residents with a median income of $39,792. It's estimated that approximately 1,480 packages pass through this post office each year.