São Salvador do Mundo is a concelho (municipality) of Cape Verde. It is situated in the central part of the island of Santiago. Its seat is the city Picos. Its population was 8,677 at the 2010 census, and its area is 26.5 km2, making it the smallest municipality of Cape Verde. The municipality borders Santa Cruz to the northeast, São Lourenço dos Órgãos to the southeast, Ribeira Grande de Santiago to the southwest and Santa Catarina to the northwest.