Puerto Rico's 78 Municipalities: The Island's Primary Administrative Divisions

Puerto Rico is divided into 78 municipalities (municipios), each with an elected mayor and municipal assembly. They are the primary subnational units — equivalent to counties in the U.S. states.

Complete List

Adjuntas, Aguada, Aguadilla, Aguas Buenas, Aibonito, Añasco, Arecibo, Arroyo, Barceloneta, Barranquitas, Bayamón, Cabo Rojo, Caguas, Camuy, Canóvanas, Carolina, Cataño, Cayey, Ceiba, Ciales, Cidra, Coamo, Comerío, Corozal, Culebra, Dorado, Fajardo, Florida, Guánica, Guayama, Guayanilla, Guaynabo, Gurabo, Hatillo, Hormigueros, Humacao, Isabela, Jayuya, Juana Díaz, Juncos, Lajas, Lares, Las Marías, Las Piedras, Loíza, Luquillo, Manatí, Maricao, Maunabo, Mayagüez, Moca, Morovis, Naguabo, Naranjito, Orocovis, Patillas, Peñuelas, Ponce, Quebradillas, Rincón, Río Grande, Sabana Grande, Salinas, San Germán, San Juan, San Lorenzo, San Sebastián, Santa Isabel, Toa Alta, Toa Baja, Trujillo Alto, Utuado, Vega Alta, Vega Baja, Vieques, Villalba, Yabucoa, Yauco.

Subdivisions

Each municipality contains barrios (traditional rural districts) and sectores (urban neighborhoods). Municipalities provide local services: public works, schools, health clinics, police, fire, recreation, and land-use regulation.