Ridgecrest is a small town in Concordia Parish, Louisiana, United States.

Routes 84 and 425 form the northeast boundary of the town; the highways lead northwest 3 miles (5 km) to Ferriday and southeast 6 miles (10 km) to Vidalia on the Mississippi River; Natchez, Mississippi, is 9 miles (14 km) to the southeast.

According to the United States Census Bureau, the town has a total area of 0.42 square miles (1.1 km2), all land.

There were 306 housing units at an average density of 706.8 per square mile (272.9/km2).

17.9% of all households were made up of individuals, and 10.0% had someone living alone who was 65 years of age or older.