San Pedro de Macorís was created as a Maritime District (a special administrative category that has been abandoned) on 13 June 1882. The 1907 Dominican Constitution change its status to province. It was part of the old province of Santo Domingo and of the El Seibo province before being elevated to the category of province with the municipalities of Macorís (later, San Pedro de Macorís), Ramón Santana and San José de Los Llanos.