Naguabo is a town and municipality in Puerto Rico located in the east coast of the island bordered by the Vieques Passage, north of Humacao; south of Río Grande and Ceiba; and east of Las Piedras. Naguabo is spread over eight barrios and Naguabo Pueblo. The municipality is composed of the barrios of Daguao, Río, Mariana, Peña Pobre, Pueblo, Río Blanco, Maizales, Santiago y Lima, and Duque. It is part of the San Juan-Caguas-Guaynabo Metropolitan Statistical Area.