Guayubín is a municipality since 1855, Villa Vásquez since 1938, Pepillo Salcedo since 1949, Castañuelas since 1974 and Las Matas de Santa Cruz since 1985. Villa Elisa and Hatillo Palma became municipal districts in 1997, Cana Chapetón in 1999 and Palo Verde in 2002.