City of Port Sulphur, Louisiana

Port Sulphur is located at 29°28'49" North, 89°41'36" West (29.480278, -89.693611).

According to the United States Census Bureau, the city has a total area of 8.48 mi² (21.96 km²). 6.06 mi² (15.69 km²) of it is land and 2.42 mi² (6.27 km²) of it is covered by water. The total area is 28.54% water.

Port Sulphur is located in the Central Standard Time (CST) timezone, GMT-06:00. It observes Daylight Saving Time (DST).