- Capital
- Washington, D.C.
- Language
- English. Spanish is very widely spoken, particularly in the Southwest, Florida and major cities.
- Currency
- US dollar ($)
- Cards and cash
- Cards everywhere and contactless is now near-universal. Note that sales tax is added at the till, not shown on the price tag, and varies by state and city — typically 4–10%.
- Entry and visas
- Most European, UK, Australian, NZ, Japanese and South Korean citizens travel visa-free under the Visa Waiver Program but must obtain an ESTA online before departure, ideally at least 72 hours ahead. Others need a B-2 visitor visa, which can take months to arrange.
- Power sockets
- Type A and B, 120 V, 60 Hz. European appliances need a voltage-compatible charger, not just a plug adapter.
- Emergency number
- 911 for police, fire and medical, nationwide.
- Tipping
- Not optional in practice. 18–22% at sit-down restaurants, $1–2 per drink at a bar, 15–20% for taxis, $2–5 per night for housekeeping. Restaurant staff are frequently paid below minimum wage on the assumption of tips.
- Safety
- Safe for visitors in the areas they typically use. Gun violence is statistically concentrated and rarely affects tourists, but it is real. The greater practical risks are road accidents on long drives, dehydration and heat in the desert parks, and wildlife in the mountain parks.
- Internet and SIM
- Excellent 4G and 5G in cities and along interstates; absent in large parts of the national parks and rural West. Download offline maps before any park visit.
- Time zone
- Six zones across the states: Eastern (UTC−5), Central, Mountain, Pacific, Alaska and Hawai'i (UTC−10). Arizona does not observe daylight saving; Hawai'i does not either.
Daily budget guide (per person)
- Backpacker
- $110–170 per day — hostels, self-catering, shared car costs
- Mid-range
- $220–330 per day — mid-range hotel, one restaurant meal, car hire
- Comfortable
- $380–600 per day — good hotels, restaurants, internal flights
- Add on top
- Sales tax at the till, 18–22% restaurant tips, resort fees and parking in cities
Excludes international flights. Figures are typical rather than absolute — cities and peak season run higher.