The Virgin Islands are divided into three distinct political jurisdictions. The United States controls the U.S. Virgin Islands (USVI), which includes St. Thomas, St. Croix, and St. John; these are unincorporated territories of the U.S. The United Kingdom controls the British Virgin Islands (BVI), an overseas territory consisting of Tortola, Virgin Gorda, and Anegada. A third, less commonly mentioned group is the Spanish Virgin Islands (Culebra and Vieques), which are part of Puerto Rico and thus also under the control of the United States. While they are close neighbors and share an archipelago, they have different laws, currencies (though the US Dollar is widely used in both), and government structures. For 2026 travelers, this means you may need to clear customs and show a passport when moving between the BVI and USVI, despite their geographical proximity.