Missouri Casinos Map
Missouri has thirteen casinos, all of them riverboat casinos and all tied by the state constitution to the Missouri or Mississippi rivers. This Missouri casinos map groups every property by region, from the heavy clusters at St. Louis and Kansas City to the river towns spread across the rest of the state. Thirteen is the legal maximum, fixed since 2008, and the minimum age to gamble is 21 everywhere.
- Casinos
- 13riverboat, capped by law
- Minimum age
- 21every casino, statewide
- Sports betting
- Legalretail & online, 21+, since Dec 2025
- Regulator
- MGCMissouri Gaming Commission
Illustration An illustrated overview, not to scale. See the interactive map below for exact locations.
How casinos are spread across Missouri
Missouri’s casinos follow its two great rivers and its two big cities. The heaviest cluster is at St. Louis, where the Missouri and Mississippi rivers meet. Ameristar at St. Charles and Hollywood at Maryland Heights sit on the Missouri River in the western suburbs, Horseshoe St. Louis holds the downtown riverfront, and River City anchors the south county at Lemay. Together they make greater St. Louis the densest gaming market in the state.
Kansas City is the other anchor, four hundred miles west where the Missouri River bends through the metro. Ameristar Kansas City is the largest floor in the west, with Harrah’s just across in North Kansas City, Argosy at Riverside to the northwest, and Bally’s, the former Isle of Capri, on the city’s riverfront. The two metros between them hold eight of the thirteen casinos.
The remaining five are spread along the rivers in smaller towns. The Missouri River carries the Isle of Capri at Boonville in the center of the state and the St. Jo Frontier up at St. Joseph in the northwest. The Mississippi side holds Mark Twain at La Grange in the northeast and, down in the southeast, Century Casino Cape Girardeau and Century Casino Caruthersville, the latter moved into a new land based building in late 2024. Every one of the thirteen sits on or beside one of the two rivers, because Missouri law requires it.
The Missouri casinos map
Pins Verified locations. The St. Louis and Kansas City casinos sit close together and group into clusters until you zoom in.
All thirteen Missouri casinos, the legal maximum. The roster is fixed by the license cap, though properties rebrand and rebuild; dated May 2026.
§ Casinos by region
The hub’s routing job. Missouri breaks into four working areas along its two rivers, each linking down to its city and casino pages as they come online.
St. Louis area where the two rivers meet
The densest cluster in the state. Ameristar St. Charles and Hollywood Casino St. Louis at Maryland Heights sit on the Missouri River in the western suburbs, Horseshoe St. Louis holds the downtown riverfront after its rebrand from Lumiere Place, and River City Casino anchors south St. Louis County at Lemay. This is the natural base for a casino trip in eastern Missouri.
Kansas City area the Missouri River · the western metro
The western anchor. Ameristar Kansas City is the largest floor on this side of the state, with Harrah’s across the river in North Kansas City, Argosy at Riverside just northwest of downtown, and Bally’s, the former Isle of Capri, on the Kansas City riverfront. Four casinos serve the metro, all on or beside the Missouri River.
The Missouri River, outstate Boonville · St. Joseph
Between the two metros, two casinos sit on the Missouri River in smaller towns. The Isle of Capri at Boonville serves mid Missouri and the Columbia and Jefferson City area, and the St. Jo Frontier Casino sits up at St. Joseph in the northwest corner near the Kansas line.
The Mississippi River, outstate La Grange · Cape Girardeau · the Bootheel
The eastern river carries three more. Mark Twain Casino sits at La Grange in the northeast, and the southeast holds two Century casinos, one at Cape Girardeau and one at Caruthersville down in the Bootheel, where a new land based casino and hotel opened in November 2024 to replace the old riverboat.
Casino laws and minimum age in Missouri
Casino gambling is legal and tightly defined in Missouri, regulated by the Missouri Gaming Commission. Voters approved riverboat gambling in 1992, and the state constitution still requires casinos to operate on the Mississippi or Missouri rivers, which is why all thirteen sit on the water rather than spread inland. A 2008 ballot measure capped the number of licenses at thirteen and removed the old per visit loss limit at the same time, so the roster has been fixed for well over a decade even as individual properties rebrand and rebuild.
The minimum age to gamble is 21 at every Missouri casino. The state lottery and betting on horse races are open at 18, but the casino floor is 21 and over. Sports betting, approved by voters in 2024, launched on December 1, 2025, at retail sportsbooks in the casinos and online statewide, and it carries the same 21 and over minimum. Hours vary by property, so check the official site before planning around them, and confirm the current age and rules at the specific venue, since policies can change.
Dated fact Minimum age 21 at every Missouri casino, per the Missouri Gaming Commission. Verified May 2026. This is the kind of figure to recheck before relying on it.
Missouri’s riverboat law and the thirteen casino cap
Missouri’s whole casino map is shaped by two votes. The 1992 referendum that legalized riverboat gambling tied it to the Mississippi and Missouri rivers, and a 2008 measure froze the system in place, capping licenses at thirteen and forbidding any new ones. That cap is why Missouri cannot simply add a casino in a growing suburb the way some states do, and why proposals for new locations, like the recent efforts around Lake of the Ozarks, have to clear a statewide constitutional vote rather than a routine license. The 2008 measure also ended Missouri’s unusual loss limit, which had capped how much a gambler could buy in over a two hour window, a rule no other state used the same way.
The St. Louis and Kansas City clusters
For a visitor the practical shape of Missouri is two casino cities at opposite ends of the state. Greater St. Louis holds four casinos within easy reach of downtown and the airport, and greater Kansas City holds four more on its stretch of the Missouri River. Eight of the thirteen sit in these two metros, which is where the largest floors, the most table games, and the resort hotels are concentrated. The five outstate casinos serve their own regions, from Columbia and Jefferson City out to the Bootheel, but the depth of choice is in the two big cities, four hundred miles apart at either end of Interstate 70.
Sports betting in Missouri
Sports betting is the newest piece of Missouri gambling. Voters narrowly approved it in 2024, and it launched on December 1, 2025, both as retail sportsbooks inside the casinos and as online mobile betting statewide. The apps and books run under the Missouri Gaming Commission, and the minimum age is 21, the same as the casino floor. For a visitor that means you can now place a bet at a casino sportsbook or on your phone anywhere in the state, where a year earlier you could not.
Missouri casino questions
Q. How many casinos are in Missouri?
Thirteen, all riverboat casinos, which is the maximum the state allows. A 2008 referendum capped the number at thirteen and barred any new licenses, so the count is fixed rather than drifting. They cluster heavily at St. Louis and Kansas City, with the rest in river towns across the state.
Q. What is the minimum gambling age in Missouri?
It is 21 at every Missouri casino and 21 for sports betting. The state lottery and betting on horse races are open at 18. Confirm at the venue, since policies can change.
Q. Why are all of Missouri's casinos on rivers?
The state constitution requires casino gambling to take place on the Mississippi or Missouri rivers, so every one of the thirteen sits on or beside one of the two. Most now operate from moored barges or land based buildings next to the water rather than as cruising boats.
Q. Where are most of Missouri's casinos?
The two big metros hold most of them. The St. Louis area has four, including Ameristar St. Charles and Horseshoe St. Louis, and the Kansas City area has four more. The remaining five are spread along the Missouri and Mississippi rivers at Boonville, St. Joseph, La Grange, Cape Girardeau, and Caruthersville.
Q. Is sports betting legal in Missouri?
Yes. Missouri voters approved sports betting in 2024 and it launched on December 1, 2025, both at retail sportsbooks in the casinos and online statewide, regulated by the Missouri Gaming Commission, for bettors 21 and over.
Q. Does Missouri have any tribal casinos?
Not yet. All thirteen current casinos are commercial riverboat casinos. The Osage Nation is working through approvals for what would be Missouri's first tribal casino near Lake Ozark, but it is not open as of 2026, and a separate commercial casino proposal for the Osage River was voted down in 2024.
Gamble responsibly. Gambling should be entertainment, not a way to make money, and only with money you can afford to lose. If gambling stops feeling like a choice, help is free, confidential, and available 24/7. Call or text the National Problem Gambling Helpline at 1-800-MY-RESET, or visit 1800myreset.org. You must be of legal age to gamble. More on recognizing a problem and finding help.
Editorial note
Reviewed by the CasinosMap editorial desk. The thirteen casino roster, the constitutional river requirement and the thirteen license cap, the operating companies, the minimum age, and the December 2025 sports betting launch were checked against current authoritative sources, not prior knowledge. The proposed Osage Nation casino near Lake Ozark is noted as pending and not counted, and figures are dated and treated as a snapshot.
Byline is a placeholder pending a named author with relevant credentials.
Sources
- Missouri Gaming Commission licensed riverboat casinos, regulation, minimum age, sports wagering
- Missouri Gaming Association the thirteen casinos and the operators
- American Gaming Association Missouri state gaming overview and minimum age
- Operator and local coverage Caruthersville land based opening, December 2025 sports betting launch, the Lake Ozark proposals