Casino rules in the United States, reviewed August 2026. Gambling law changes — confirm anything that matters with the regulator before you travel.
How many casinos are there in the United States?
This catalog lists 631 casinos in the United States, spread across 366 cities.
- The largest concentrations are in Las Vegas, Henderson and Reno.
- 113 of them are listed as open 24 hours a day.
- The count covers venues with a verifiable location record and will differ from a national licence register.
What is the legal gambling age in the United States?
The minimum age to enter a casino in the United States is 21.
- 21 in every commercial casino state. Some tribal casinos admit 18-year-olds, and a few states are 18 throughout.
Do you need ID to enter a casino in the United States?
Yes. Government-issued photo ID is required to claim a jackpot, open a player's-club account or buy alcohol, and is routinely checked at the door for anyone who looks under 30.
Do you pay tax on casino winnings in the United States?
Casino winnings are taxable income. Casinos withhold 24% and issue a W-2G above set thresholds (from $1,200 on a slot jackpot), and non-resident visitors are generally withheld at 30% unless a tax treaty applies.
- Tax residency, not the country you played in, usually decides what you owe at home. Take advice before a large win.
Can you smoke in casinos in the United States?
Smoking rules are set state by state and often property by property. Nevada casinos allow smoking at the tables and machines; most other states ban it indoors or confine it to a sealed room. This applies to every casino in the United States.
What currency do casinos in the United States use?
Casinos in the United States deal in the US dollar (USD).
Who regulates casinos in the United States?
Casinos in the United States are licensed and supervised by the State gaming boards (e.g. Nevada Gaming Control Board).
- Casino gambling is legal in roughly two-thirds of states, under commercial licences, tribal compacts or both.
- A regulator's register is the only reliable way to confirm a venue is currently licensed.