San Juan is the capital city and most populous municipality in the Commonwealth of Puerto Rico, an unincorporated territory of the United States. As of the 2020 census, it is the 57th-largest city under the jurisdiction of the United States, with a population of 342,259. San Juan was founded by Spanish colonists in 1521, who called it Ciudad de Puerto Rico.
The Tren Urbano is a 10.7-mile (17.2 km) automated rapid transit system that serves the municipalities of San Juan, Guaynabo, and Bayamón, in Puerto Rico. The Tren Urbano consists of 16 stations operating on 10.7 miles (17.2 km) of track along a single line. In 2023, the system had a ridership of 2,738,100, or about 14,100 per weekday as of the first quarter of 2024.
Hato Rey is a former barrio located in the northwest part of the dissolved municipality of Río Piedras. It now stretches over three barrios of the municipality of San Juan, Puerto Rico: Hato Rey Norte, Hato Rey Central, and Hato Rey Sur.
Río Piedras is a populous district of San Juan, and former town and municipality of Puerto Rico, which was merged with the municipality of San Juan in 1951. The district today is composed of various barrios such as Pueblo and Universidad. The historic town was founded in 1714 as El Roble, it was given municipality rights in 1823, and since 1903 it has been the home of the University of Puerto Rico's main campus, earning the popular name of Ciudad Universitaria today. The downtown and historic center of Río Piedras is officially known as the Pueblo barrio of the municipality of San Juan.
Puerto Rico Highway 18 (PR-18) is a freeway in Puerto Rico, which is also known as Expreso Las Américas. It runs from its north end at its intersection with PR-22 in San Juan to its south end in Río Piedras where it intersects with PR-1. At this point PR-18 becomes PR-52, known as Autopista Luis A. Ferré.
Milla de Oro is both the popular name given to the main central business district of San Juan and a nickname given to the sections of Juan Ponce de León Avenue and Luis Muñoz Rivera Avenue that cross Hato Rey Norte from north to south. It encompasses the largest agglomeration of corporate investment, banking and finance institutions in the Caribbean. The headquarters of Puerto Rico's largest retail investment bank, Popular, Inc., are located at Popular Center in 208 Juan Ponce de León Ave. La Milla de Oro is served by the Tren Urbano stations of Hato Rey, Roosevelt, Domenech and Piñero stations in addition to numerous bus routes with connections to Río Piedras, Plaza Las Américas, Santurce and Old San Juan.
The municipality of San Juan is divided into 18 barrios, 16 of which fall within the former municipality of Río Piedras. Eight of the barrios are further divided into subbarrios, and they include the two barrios that originally composed the municipality of San Juan :
Telemundo of Puerto Rico Studios, LLC is a division of NBCUniversal Telemundo Enterprises, a division of NBCUniversal, a subsidiary of Comcast. It develops original programming in Spanish for station WKAQ-TV in Puerto Rico.
Puerto Rico Highway 23 (PR-23), also known as Franklin Delano Roosevelt Avenue along its entire length, is a main highway in San Juan, Puerto Rico. It begins at the interchange of PR-2 and PR-165 near San Patricio in Guaynabo and goes east to the Milla de Oro business area, passing through Plaza Las Américas and ending at Barbosa Avenue (PR-27) junction in eastern Hato Rey.
Avenida Juan Ponce de León, coextensive as Puerto Rico Highway 25 (PR-25) along its entire length, is one of the main thoroughfares in San Juan, Puerto Rico.
El Cinco is one of the 18 barrios of the municipality of San Juan, Puerto Rico and a former barrio of the dissolved municipality of Río Piedras. As of the 2020 United States Census, it had a population of 5,610 and a land area of 1.34 square miles (3.5 km2) resulting in a population density of 4,625.4/sq mi (1,785.9/km2).
Gobernador Piñero is one of the 18 barrios of the municipality of San Juan, Puerto Rico. With a population of 44,006 (2010) living in a land area of 4.44 square miles (11.5 km2), it is San Juan’s second most populated barrio after Santurce, and the fourth largest in land area.
Hato Rey Central is one of the 18 barrios of the municipality of San Juan, Puerto Rico. With a population density of 16,155.3 per square mile. It has a land area of 1.03 sq mi and a 2010 Census population of 16,640.
Hato Rey Sur is one of the 18 barrios of the municipality of San Juan, Puerto Rico. Hato Rey Sur was a barrio of the former municipality of Rio Piedras, before it was merged with the municipality of San Juan in 1951. Following the annexation of Rio Piedras, the city of San Juan, and its surrounding area now including Rio Piedras, quadrupled its former size.
Sagrado Corazón station is a rapid transit station in San Juan, Puerto Rico. Located the Martín Peña neighborhood at the southern edge of Santurce. The station is named after the district and the university of the same name. Opening on December 17, 2004, this is the northern terminus of the Tren Urbano line. The station features a stained glass display of public art display entitled Vitral by Luis Hernández Cruz.
Hato Rey station is a rapid transit station in San Juan, Puerto Rico, located in Hato Rey Norte and Milla de Oro financial district. The station was designed by Segundo Cardona FAIA of SCF Architects. It opened on December 17, 2004. The station is located adjacent to the José Miguel Agrelot Coliseum which it serves.
Roosevelt station is a rapid transit station in San Juan, Puerto Rico, located in the Hato Rey Norte barrio and the Milla de Oro financial district. The station is named after the Franklin D. Roosevelt Avenue where it is located. The station opened on December 17, 2004. It features a tile mural by the artist Susana Espinosa entitled Encuentros Fugaces.
Piñero station is a railway station in San Juan, Puerto Rico located in the Hato Rey Sur district. The station is named after the Jesús T. Piñero Avenue where it is located. The station opened on December 17, 2004. It features a work of public art entitled Viandante by the artist Marnie Pérez Molière.
Hato Rey Norte is one of the 18 barrios of the municipality of San Juan, Puerto Rico. Hato Rey Norte was part of the former municipality of Rio Piedras, before it was merged with the municipality of San Juan in 1951.
Caño Martín Peña Nature Reserve is a nature reserve in San Juan, Puerto Rico located along the 3.75 mile long Martín Peña Channel. The nature reserve protects wetlands and an urban mangrove forest which extends throughout the channel between the Los Corozos and San José Lagoons in the east and the San Juan Bay in the west, and between the districts of Santurce in the north and Hato Rey in the south. This reserve is managed by the Puerto Rico Department of Natural and Environmental Resources (DRNA) and belongs to the larger San Juan Bay National Estuary, the only tropical estuary in the National Estuary Program network.
