San Juan

Juan Ponce de León founded the first Spanish settlement, Caparra, in 1508, and a year later it moved to the site then called Puerto Rico — the "rich port" — on the islet at the mouth of the bay. In 1521 it took the formal name Ciudad de Puerto Rico de San Juan Bautista. The diocese founded here in 1511 is the oldest in the United States, and San Juan is the second-oldest European-founded capital in the Americas after Santo Domingo.

Because the city guarded the routes that carried gold and silver from the New World to Spain, it became a fortress. El Morro's artillery drove off Sir Francis Drake in 1595, but the Earl of Cumberland landed troops and besieged the city in 1598, and Dutch forces sacked it in 1625 while El Morro held out. San Cristóbal and the walls were built up over the following century and a half, and a British attack came in 1797. In May 1898 United States Navy ships bombarded the city during the Spanish-American War, and Puerto Rico passed to the United States.

In the 20th century the city spread far beyond its walls, absorbing Santurce, Hato Rey and Río Piedras. In October 1950 Nationalist Party members attacked La Fortaleza during the San Juan Uprising. Hurricane Maria in September 2017 caused widespread damage and a collapse of infrastructure across the city. Since then gentrification has become a visible issue in districts such as Santurce and Río Piedras.

San Juan is widely regarded as one of the world's capitals of salsa. El Gran Combo de Puerto Rico, known as the "University of Salsa", is based here, and the city has been the home of the World Salsa Congress since the late 1990s. It is also counted as the centre of reggaeton's global rise. The Puerto Rico Symphony Orchestra is based in the city, which also hosts the Casals Festival, the leading classical music festival in the Caribbean.

The biggest party of the year is La SanSe, the San Sebastián Street Festival, held on the third weekend of January in Old San Juan. It began as a neighbourhood celebration of Saint Sebastian and now draws more than 200,000 people, unofficially closing the long Christmas season of parrandas. The city's patron-saint festival falls in June, when people crowd the beaches on the night of 23 June.

The city has hosted the Pan American Games of 1979, the Central American and Caribbean Games of 1966 and rounds of several World Baseball Classics. Spanish is the language of the street, family is at the centre of social life, and Sunday gatherings, music and long evenings out are part of the city's rhythm.

The municipality of San Juan had 342,259 people at the 2020 census, the largest in Puerto Rico, and its metropolitan area — taking in Bayamón, Guaynabo, Carolina, Caguas and other municipalities — holds about three-quarters of the island's population. The city is Puerto Rico's most important seaport and one of its main financial, cultural and tourism centres.

Daily life is divided between distinct districts. Old San Juan mixes residents with government offices, shops and cruise passengers; Condado and Isla Verde are lined with hotels and condominiums; Santurce is dense and mixed, with poorer districts in its south-east and affluent ones by the sea; Hato Rey's Milla de Oro holds the banks and offices; and Río Piedras revolves around the main campus of the University of Puerto Rico, there since 1903, and the island's largest medical centre.

Current concerns include rising rents and gentrification in districts such as Santurce, erosion threatening the beaches, especially at Ocean Park, and the island's fragile power grid, which has suffered island-wide blackouts as recently as 2024 and 2025.

San Juan eats the cocina criolla of the whole island, built on sofrito — a purée of peppers, onion, garlic, culantro and ají dulce. Mofongo, fried green plantain mashed with garlic and pork crackling, often filled with shrimp or meat, is a traditional Puerto Rican dish, and arroz con gandules, rice with pigeon peas, comes with pernil, slow-roast pork shoulder. Tostones and sweet amarillos, both fried plantain, are everyday sides.

Street food is the other half of the story. At the beach kiosks of Piñones, just east of the city, cooks fry alcapurrias, bacalaítos (salt-cod fritters) and pastelillos to be eaten with a cold Medalla beer, and in the old city piragua carts sell shaved ice with fruit syrups. La Placita in Santurce is a produce market by day and fills with diners and drinkers at night.

The piña colada is claimed to have been invented in San Juan, and a restaurant on Calle Fortaleza displays a marker claiming the original. Rum is the island's spirit, and the Bacardí distillery across the bay in Cataño, reached by ferry from the old city, is the largest rum distillery in the world.