Lajas is a town and municipality of Puerto Rico located in the Lajas Valley in southwestern Puerto Rico, on the southern coast of the island, bordering the Caribbean Sea, south of San Germán and Sabana Grande; east of Cabo Rojo; and west of Guánica. Lajas is spread over 11 barrios plus Lajas Pueblo. It is part of the San Germán-Cabo Rojo Metropolitan Statistical Area.