The US Virgin Islands are an unincorporated territory of the United States, comprising three main islands: St. Thomas, St. John, and St. Croix. They sit east of Puerto Rico in the Caribbean Sea. The British Virgin Islands — Tortola, Virgin Gorda, Anegada, Jost Van Dyke, and dozens of smaller islands — lie just to the east and are a separate territory under UK administration.
Currency and costs. The US dollar is the currency. Credit cards are widely accepted in hotels, larger restaurants, and shops, but many smaller spots and beach bars prefer cash. ATMs are available at both airports, in Charlotte Amalie, and in Christiansted. The USVI is not a budget destination — expect prices broadly comparable to the US mainland, with tourist-facing services running higher.
Documentation. US citizens do not need a passport to enter the USVI, but you will need one if you plan to visit the British Virgin Islands. Non-US visitors should carry their passport throughout.
Electricity. 110V/60Hz, same as the US mainland. Standard US two-pin plugs work fine.
Time zone. Atlantic Standard Time (UTC−4) year-round. The USVI does not observe daylight saving time, so during US summer months the islands are on the same time as the US East Coast.
Phone. Country code +1, area code 340. The islands are on the US mobile network; American phones work without roaming for calls and data. Emergency services: dial 911.
Health. No vaccinations are required. Tap water is safe to drink on all three main islands. Sun, heat, and dehydration are the most common hazards. Bring reef-safe sunscreen — sunscreens containing oxybenzone and octinoxate are banned in the USVI to protect coral reefs.
Language. English throughout. Spanish is commonly spoken, especially in Charlotte Amalie and on St. Croix. Virgin Islands Creole is heard in local communities.
Customs. Greetings matter here. Say "good morning" or "good afternoon" when entering a shop or approaching someone — skipping it comes across as rude. The pace of daily life is unhurried; adjust expectations accordingly.