The Madrid Post Office is located in the state of Iowa within Boone County. This location serves 4,412 Madrid residents with a median income of $54,005. It's estimated that approximately 7,042 packages pass through this post office each year.
The Madrid Post Office is located in the state of Iowa within Boone County. This location serves 4,412 Madrid residents with a median income of $54,005. It's estimated that approximately 7,042 packages pass through this post office each year.