Fort Johnson South, Louisiana

Fort Johnson South is a census-designated place (CDP) in Vernon Parish, Louisiana, United States. The population was 11,000 at the 2000 census.

Fort Johnson South is the larger principal city of the Fort Johnson South-DeRidder CSA, a Combined Statistical Area that includes the Fort Johnson South (Vernon Parish) and DeRidder (Beauregard Parish) micropolitan areas, which had a combined population of 85,517 at the 2000 census.