Alapaha is a town in Berrien County, Georgia, United States, along the Alapaha River. As of the 2020 census, the city had a population of 48…Alapaha is a town in Berrien County, Georgia, United States, along the Alapaha River. As of the 2020 census, the city had a population of 481. Alapaha developed from a trade settlement on the site of a Seminole village with the same name. The present-day Georgia town of Lakeland was originally named "Alapaha" and existed before the town that now bears the name.