Salinas is a municipality of the Commonwealth of Puerto Rico, founded on July 22,1841. It is located on the south coast of the island, south of Coamo, Aibonito and Cayey, north of the Caribbean Sea, east of Santa Isabel, and west of Guayama. It owes its name to the amount of salt that was in its coasts before its foundation. His name is Salinense. In the 2010 Census it had a population of 31,078 inhabitants and a population density of 105.15 people per km². It has long been a fishing spot for Puerto Ricans, known for its beaches, its variety of fish and for being the birthplace of the famous "mojo island".
Although Salinas does not have a commercial airport, it has a US military air base. In addition, it has a military camp for young people, Camp Santiago, which is visited every year by various groups of Boy and Girl Scouts of the United States and by other youth groups.