Legal Age to Gamble in Washington: 18 Statewide, 21 at Casinos

The legal gambling age in Washington is eighteen under state law, but at most places you can actually walk into, the age you’ll be asked for is twenty-one. That gap comes from liquor rules, not gambling rules: casinos and card rooms serve alcohol, and Washington bars anyone under twenty-one from the areas of a licensed premises the liquor board classifies as off-limits. So whether you can legally place a bet depends on where you’re betting and what you’re betting on.

The Statewide Floor Is Eighteen

RCW 9.46.228 makes it illegal for anyone under eighteen to participate in authorized gambling activities, including card games, punchboards, and pull-tabs.¹ Eighteen is a minimum. Operators can set the bar higher, and most do.

The statute leaves a narrow opening for minors: bingo, raffles, and amusement games are allowed when Gambling Commission rules specifically permit them.¹ Everywhere else, eighteen is the hard line the state itself draws.

Casinos and Card Rooms: Twenty-One in Practice

The state’s tribal casinos operate under Class III gaming compacts, and the eighteen-year floor technically applies. In practice, most tribal casinos set their entry age at twenty-one for the gaming floor. RCW 66.44.310 prohibits anyone under twenty-one from remaining in areas of a licensed premises classified as off-limits by the liquor board, and rather than carve out alcohol-free gambling zones, most casinos restrict the entire floor to guests twenty-one and up.²

Non-tribal card rooms follow the same pattern. They hold liquor licenses, so the same twenty-one-year entry rule applies to their gaming areas. A handful of tribal casinos maintain separate sections open to eighteen-year-olds, but those are the exception. If you’re between eighteen and twenty, call the specific property before you drive out.

Lottery and Scratch Tickets: Eighteen, With a Catch

You must be eighteen to buy any Washington State Lottery product, draw game or scratch-off. RCW 67.70.120 makes this explicit and treats a violation on either side of the counter as a misdemeanor: the retailer who knowingly sells to a minor and the minor who directly purchases can both be charged.³ A misdemeanor in Washington carries up to ninety days in jail and a fine of up to $1,000.⁴

There’s a second consequence that matters more to most people than the criminal exposure. A minor who buys a ticket directly gets nothing if it wins. No prize is paid on that ticket, and the money is treated as unclaimed.³ A seventeen-year-old who walks in, buys a scratch-off, and scratches off $10,000 collects zero. A minor who receives a winning ticket legitimately, such as a gift, is treated differently, with the prize paid through an adult family member or a custodial account depending on the amount.⁵

Sports Betting

Sports wagering is available only at tribal casinos that have amended their compacts to include it, and you must be physically on the casino’s premises to place a bet. Statewide mobile sportsbooks are not permitted, and even the tribal mobile apps are geofenced so they only accept wagers when your device is inside that tribe’s land.⁶

The minimum age tracks the general eighteen-year floor, but because these sportsbooks sit inside alcohol-serving casinos, the effective entry age at most locations is twenty-one for the same liquor-law reason that governs the rest of the gaming floor.²

Horse Racing: Eighteen at the Track, Twenty-One Online

The horse racing statutes in RCW Chapter 67.16 do not set their own standalone age for placing bets at a live track window, so the general eighteen-year floor under RCW 9.46.228 applies to in-person pari-mutuel wagering.¹ Minors can attend races as spectators but cannot bet.

Advance deposit wagering is stricter. RCW 67.16.260 requires account holders to be at least twenty-one, and operators must include that age restriction in all advertising.⁷ An eighteen-year-old can bet at a track window but cannot open an online account to wager from home.

Bingo, Raffles, and Charitable Games

Charitable gambling is the one area where minors get room to play. RCW 9.46.228 specifically allows people under eighteen to play bingo, raffles, and amusement games when Gambling Commission rules permit.¹ Nonprofit organizations can hold up to two unlicensed raffle, bingo, or amusement game events open to the public each year under RCW 9.46.0321.⁸

Whether a specific event admits minors is up to the sponsoring organization and any applicable rules. Practically, a child can play bingo at a church fundraiser or buy raffle tickets at a school carnival, but the same child cannot sit at a card table or play pull-tabs until they turn eighteen.

Penalties for Betting Underage

A minor who knowingly participates in authorized gambling commits a misdemeanor, with up to ninety days in jail and a fine of up to $1,000.¹⁴ Any adult who knowingly permits a person under eighteen to participate faces the same charge and the same maximums.

For lottery tickets, the financial hit is often the sharper one. A minor who buys the ticket directly loses any prize on it entirely.³

One Boundary: Online Gambling Isn’t a Question of Age

If you’re thinking about online casino sites or offshore poker rooms, age is not the question you should be asking. Transmitting or receiving gambling information over the internet falls under RCW 9.46.240 and is a class B felony, carrying up to ten years in prison, a $20,000 fine, or both.⁹⁴ Prosecutions of individual bettors are rare, but the statute is why most social casino platforms and online poker sites block Washington users. An app that works on your phone in Washington is not proof it’s legal; it usually means the operator hasn’t implemented proper geoblocking. The only legal online sports wagering runs through tribal casino apps that are geofenced to tribal land.

1
Washington State Legislature. Washington Code 9.46.228 – Gambling Activities by Persons Under Age Eighteen
2
Washington State Legislature. Washington Code 66.44.310 – Unlawful Acts Regarding Liquor by Person Under Twenty-One
3
Washington State Legislature. Washington Code 67.70.120 – Unlawful Sale of Tickets to Persons Under Eighteen
4
Washington State Legislature. Washington Code 9A.20.021 – Maximum Sentences for Crimes Committed
5
Washington State Legislature. Washington Code 67.70 – Washington State Lottery – Section 67.70.220
6
Washington State Legislature. House Bill Report SB 6137
7
Washington State Legislature. Washington Code 67.16 – Horse Racing – Section 67.16.260
8
Washington State Gambling Commission. Charitable and Nonprofit Activities That Don’t Require a License
9
Washington State Legislature. Washington Code 9.46.240 – Gambling Information, Transmitting or Receiving