Port Sulphur is a census-designated place and town located on the West Bank of the Mississippi River in Plaquemines Parish, Louisiana. The population was 3,115 at the 2000 census. The town was mostly destroyed from Hurricane Katrina in 2005. Port Sulphur apartments for rent comparison page shows most up to date rent information on Port Sulphur apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.