Deidre D Dear (Postmaster)
deidre.d.dear@usps.gov
1200 Highway 90
Bay Saint Louis, MS 39520
Bay Saint Louis, MS 39520
The Bay Saint Louis Post Office is located in the state of Mississippi within Hancock County. This location serves 14,681 Bay Saint Louis residents with a median income of $34,766. It's estimated that approximately 23,433 packages pass through this post office each year.