Bogalusa is a city in Washington Parish, Louisiana, United States. The population was 12,232 at the 2010 census. In the 2020 census the city reported a population of 10,659. It is the principal city of the Bogalusa Micropolitan Statistical Area, which includes all of Washington Parish and is also part of the larger New Orleans–Metairie–Hammond combined statistical area.

Washington Parish is a parish located in the interior southeast corner of the U.S. state of Louisiana, one of the Florida Parishes. As of the 2020 census, the population was 45,463. Its parish seat is Franklinton. Its largest city is Bogalusa. The parish was founded in 1819.