Supreme is a census-designated place (CDP) in Assumption Parish, Louisiana, United States. The population was 1,052 at the 2010 census. In 2020, its population was 839.
Supreme is located at (29.859875, -90.985197).
According to the United States Census Bureau, the CDP has a total area of , of which is land and , or 1.43%, is water.
Supreme first appeared as a census designated place the 1990 U.S. census.