When the Baoruco province was created in 1943, it was formed with the municipalities Neiba, Duvergé, La Descubierta and Tamayo. With the creation of the Independencia province in 1948, Duvergé and La Descubierta became municipalities of the new province. Villa Jaragua became a municipality of the province in 1974, Galván in 1997 and Los Ríos in 2001.