Oak Grove is the parish seat of West Carroll Parish in northeastern Louisiana, United States. The population was 1,441 at the 2020 United States census.
Louisiana Highway 2 forms Main Street in Oak Grove.
According to the United States Census Bureau, the town has a total area of 1.7 square miles (4.5 km), of which 1.7 square miles (4.4 km) is land and 0.04 square mile (0.1 km) (1.15%) is water.
As of the 2020 United States census, there were 1,441 people, 652 households, and 384 families residing in the town.
The Fiske Theatre, built in 1928, is the oldest operating movie theatre in northeast Louisiana and the last remaining single-screen facility. The building is listed on the National Register of Historic Places.
Public schools are operated by the West Carroll Parish School Board. Schools include Oak Grove Elementary School, and Oak Grove High School.
The West Carroll Gazette newspaper serves the Oak Grove Area.
KWCL-FM is a radio station in Oak Grove.