Best Gambling Sites in Missouri 2026

Missouri voters approved Amendment 2 in November 2024 — narrowly, with about 50.1% support — authorizing mobile and retail sports betting tied to the state's 13 commercial riverboat casinos and its two professional sports stadium districts. The Missouri Gaming Commission spent 2025 finalizing rules, and mobile sportsbooks launched in December 2025. As of April 2026, DraftKings, FanDuel, BetMGM, Caesars, ESPN BET, Fanatics, and bet365 are live in the state, along with retail sportsbooks at riverboat casinos in Kansas City, St. Louis, Boonville, Caruthersville, La Grange, and St. Joseph.

Beyond the new sportsbook market, Missouri has 13 commercial riverboat casinos (Ameristar, Hollywood, Harrah's, Bally's, Century, and others) offering full slots and table games, the Missouri Lottery (Powerball, Mega Millions, Lotto, Show Me Cash, Pick 3, Pick 4, scratchers), pari-mutuel horse racing through advance-deposit wagering, and charitable bingo. There are no tribal casinos in Missouri. Online casino gaming is not legal — Amendment 2 covered sports betting only — and DFS contests are explicitly authorized under 2016 legislation. Sweepstakes casinos operate outside state regulation.

For 2026, the focus is on stabilizing the new mobile sportsbook market, monitoring the 10% tax rate and $5 million license fee structure for revenue performance, and watching whether iGaming legislation gains any traction (it has not yet been seriously proposed). The Missouri problem gambling helpline is 1-888-BETSOFF (1-888-238-7633).