Frances F Barthelemy (Postmaster)
frances.f.barthelemy@usps.gov
26852 Highway 23 Ste A
Port Sulphur, LA 70083
Port Sulphur, LA 70083
The Port Sulphur Post Office is located in the state of Louisiana within Plaquemines Parish County. This location serves 2,353 Port Sulphur residents with a median income of $38,380. It's estimated that approximately 3,756 packages pass through this post office each year.