Florien is a village in Sabine Parish, Louisiana, United States. The population was 633 at the 2010 census, down from 692 at the 2000 census. The village is home to the annual Sabine Free State Festival, celebrating the village’s history as part of the Sabine Neutral Strip.
The Neutral Ground (also known as the Neutral Strip, the Neutral Territory, and the No Man's Land of Louisiana; sometimes anachronistically referred to as the Sabine Free State) was a disputed area between Spanish Texas and the United States' newly acquired Louisiana Purchase. Local officers of Spain and the United States agreed to leave the Neutral Ground temporarily outside the jurisdiction of either country. The area, now in western Louisiana, had neutral status from 1806 to 1821.