San Juan: Capital and Largest City of Puerto Rico

Yes, San Juan is the capital and most populous city of Puerto Rico. Founded in 1521 by Spanish colonists, it is the oldest continuously inhabited city under U.S. jurisdiction. As an unincorporated U.S. territory, Puerto Rico's residents are U.S. citizens; San Juan serves as the island's political, economic, and cultural heart.

The metropolitan area houses over 2 million people—roughly 60% of the territory's population—and features a major seaport, international airport (SJU), historic colonial district (Old San Juan), and a diverse economy spanning tourism, finance, manufacturing, and government services.