Gambling Laws In Idaho
Idaho gambling laws permit only a narrow range of regulated activities. Residents can legally participate in the Idaho Lottery, pari-mutuel horse racing, qualifying charitable bingo and raffles, and approved gaming offered at tribal casinos. Commercial casinos, state-regulated online casino sites, and conventional retail or mobile sportsbooks are not currently authorized.
This guide explains which forms of gambling are legal, the state statutes that apply, and the agencies responsible for regulatory oversight. It also examines whether Idaho could expand its gaming market and provides a timeline of the major legal developments that have shaped the current system.
What State Gambling Laws Are on the Books?
Idaho maintains some of the strictest gambling restrictions in the United States. Article III, Section 20 of the state Constitution declares gambling contrary to public policy and prohibits it unless the activity falls within a specifically authorized exception. Those exceptions include the Idaho Lottery, regulated pari-mutuel wagering, and bingo or raffles conducted by qualified charitable organizations.
The state’s general criminal gambling laws appear in Title 18, Chapter 38 of the Idaho Code. ID Code § 18-3801 broadly defines gambling as risking money or another item of value on chance, a gambling device, or the outcome of an event, including a sporting event. Under § 18-3802, participating in unauthorized gambling or knowingly allowing it to occur on property under a person’s control can result in a misdemeanor charge.
Other important laws on the books include:
- Code Title 67, Chapter 74: Establishes and regulates the Idaho Lottery.
- Code Title 54, Chapter 25: Governs authorized pari-mutuel wagering on approved racing events.
- Code Title 67, Chapter 77: Regulates charitable bingo and raffle games.
- Code § 18-3810: Prohibits the possession or operation of unauthorized slot machines and similar gambling devices.
- Code Title 67, Chapter 42: Addresses gaming conducted under state-tribal agreements.
Traditional casino gambling—including blackjack, craps, roulette, poker, baccarat, keno and slot machines—is constitutionally prohibited outside federally authorized tribal gaming operations. Tribal casinos may operate certain games under the federal Indian Gaming Regulatory Act and gaming compacts negotiated between participating tribes and the state.
The state has not enacted a law authorizing commercial sportsbooks, online casinos, or state-regulated poker sites. Because the statutory definition of gambling expressly covers wagers on sporting events, unauthorized sports wagering remains prohibited.
The statutes do recognize limited exclusions for legitimate contests of skill, lawful business transactions, games that award only additional play, and promotional drawings that do not require participants to provide consideration. However, attaching an entry fee or required purchase to a chance-based promotion may cause it to fall within the state’s gambling prohibitions.
What Is the Minimum Gambling Age in Idaho?
The minimum gambling age depends on the activity and, in the case of tribal gaming, the rules established by the individual property. Most legal gambling options are restricted to adults who are at least 18 years old.
- Tribal casinos — 18: Players generally must be at least 18 to use gaming machines, play bingo, or participate in other authorized casino games. Individual tribal properties may establish additional restrictions, particularly for bars and other alcohol-serving areas. Coeur d’Alene Casino, for example, requires guests to be at least 18 and present valid identification before gambling.
- Idaho Lottery — 18: A person must be at least 18 to purchase or redeem a lottery ticket. State law prohibits retailers from selling lottery products to anyone younger than 18.
- Pari-mutuel horse racing — 18: Racing regulations prohibit anyone under 18 from placing a pari-mutuel wager. This requirement applies to legal wagering at race meets, simulcast locations and approved advance-deposit wagering services.
- Charitable bingo — 18 for most cash-prize games: Anyone younger than 18 is prohibited from playing bingo when a cash prize is offered or when a merchandise prize is worth more than $25. Minors may participate only when a game falls outside those restrictions, and the organizer permits it.
- Charitable raffles — Rules may vary: The state's charitable raffle statutes do not establish the same express statewide participant age restriction that applies to lottery tickets and cash-prize bingo. A nonprofit organization may impose its own minimum age, so participants should review the individual raffle rules before purchasing a ticket.
Players should carry a valid government-issued photo ID when visiting a casino, racetrack, or lottery retailer. Although the general gaming age is commonly 18, anyone must be at least 21 to purchase or consume alcohol or enter an age-restricted bar area.
Who Regulates Gambling in ID?
Idaho does not have one agency responsible for every form of legal gambling. Regulatory authority is divided among several state and federal entities based on the activity involved.
The Idaho State Lottery Commission oversees the Idaho Lottery, while the Lottery’s Enforcement Division licenses and regulates eligible charitable bingo and raffle operations. The commission adopts agency rules, approves contracts, and monitors lottery operations.
The Idaho State Racing Commission, which operates within the Idaho State Police, licenses, regulates, and supervises live horse racing and simulcast race meets. It is also responsible for enforcing the state’s pari-mutuel wagering requirements.
Tribal gaming is governed through agreements between the state and area federally recognized tribes. These operations are also subject to the federal Indian Gaming Regulatory Act and oversight from the National Indian Gaming Commission. Individual tribal gaming commissions handle much of the licensing and day-to-day regulation at casinos operating on tribal lands.
Illegal gambling falls under the state's criminal laws and may be investigated or enforced by local police departments, county sheriffs, the state police, and county prosecutors. The Attorney General also represents the state in legal matters involving its authority to regulate or prohibit gambling, although the Attorney General is not the primary licensing agency for legal gaming operations.
What Types of Gambling Are Legal in Idaho?
Local law permits only a limited selection of gambling activities. The state constitution generally prohibits gambling but creates specific exceptions for the state lottery, pari-mutuel wagering, charitable bingo, and raffles. Tribal gaming is also available on federally recognized Indian lands under federal law and approved state-tribal compacts.
Legal gambling options include:
- Lottery games: Residents may purchase tickets for authorized draw games, scratch-offs, and multistate lottery games sold through licensed retailers.
- Pari-mutuel horse racing: Wagering is permitted at licensed live race meetings, simulcast facilities and through authorized advance-deposit wagering operators. Other forms of race betting are not legal.
- Charitable bingo and raffles: Qualified charitable and nonprofit organizations may conduct these activities in accordance with state licensing and reporting requirements. Poker runs, casino nights and similar charity gambling events are prohibited.
- Tribal casino gaming: Idaho’s tribal properties may offer approved gaming machines, bingo and certain additional games under the Indian Gaming Regulatory Act, tribal regulations and applicable gaming compacts. Tribal operations remain subject to tribal and federal oversight.
- Certain skill-based card games: Games such as bridge and pinochle are not treated as prohibited games of chance under state guidance, provided they are not operated as unlawful gambling.
Idaho does not currently authorize commercial casinos, retail or mobile sportsbooks, state-regulated online casinos, or real-money online poker rooms. Traditional casino-style games may only be offered when permitted at qualifying tribal gaming facilities. Sports wagers remain prohibited under state law, including bets placed through unlicensed local operators or unauthorized online platforms.
Could Idaho Expand Legal Gambling in the Future?
Gaming expansion is possible, but major changes appear unlikely in the near future. The Idaho Constitution declares gambling contrary to public policy and permits only limited exceptions, including the state lottery, pari-mutuel wagering, charitable bingo, and raffles. This creates a higher legal barrier than in states where lawmakers can authorize new gambling options by passing an ordinary bill.
Introducing commercial casinos, online casino games or legal sports betting would likely require lawmakers to refer a constitutional amendment to voters. The proposal would first need approval from two-thirds of both chambers of the state legislature and would then have to receive majority support in a statewide election.
As of August 2026, Idaho has not authorized retail sportsbooks, mobile sports betting, regulated online casinos or internet poker rooms. Recent statements from the Attorney General’s Office have continued to defend the state’s authority to prohibit unauthorized sports wagering, including sports-event contracts offered by federally regulated prediction-market platforms. This position indicates that state officials are currently more focused on enforcing restrictions than expanding its market.
Smaller changes may be more achievable. Lawmakers could revise regulations governing the lottery, charitable gaming or pari-mutuel horse racing, provided those changes remain within the activities already permitted by the state constitution. Tribal gaming could also evolve through negotiations between the state and federally recognized tribes, although any expansion would still need to comply with federal law, existing tribal-state compacts and Idaho’s constitutional limitations.
Public demand, tax-revenue considerations and the spread of legal sports betting in neighboring states could eventually renew the expansion debate. For now, however, there is no clear path toward widespread commercial or online gambling without substantial legislative action and, most likely, voter approval.
Idaho Gambling Timeline
- 1889 – Idaho adopts its state constitution: The state's original constitution gives lawmakers authority to prohibit lotteries and other forms of gambling. The state’s constitutional restrictions continue to shape which gaming activities may be authorized.
- 1953 – Slot machines are prohibited: The Idaho Supreme Court rules against slot machines and similar gambling devices, ending the openly operated machines that had previously been found in parts of the state.
- 1963 – Pari-mutuel horse racing becomes legal: The Horse Racing Act passes, authorizing regulated pari-mutuel wagering at licensed races. Other forms of betting on horse races remain illegal.
- 1969 – Racing oversight is strengthened: The Idaho Horse Racing Committee becomes the Idaho State Horse Racing Commission. The commission receives additional authority to issue fines and suspend or revoke licenses.
- 1988 – Voters authorize the Idaho Lottery: Residents approve a constitutional amendment allowing the state to operate a lottery. The Idaho Lottery is created to generate funding for public schools and state-owned buildings.
- July 19, 1989 – Lottery ticket sales begin: The state launches its first lottery game. ID later joins multistate games and adds scratch tickets, draw games and other authorized products.
- 1988 – Federal law establishes modern tribal gaming rules: Congress passes the Indian Gaming Regulatory Act, creating the federal framework under which federally recognized tribes may conduct gaming. Class III casino gaming generally requires a compact between the tribe and the state.
- 1992 – Constitutional gambling rules are revised: Voters approve an amendment declaring gambling contrary to public policy while preserving exceptions for the lottery, pari-mutuel wagering and qualifying charitable bingo and raffles. The amendment also specifically prohibits games typically associated with commercial casinos, including blackjack, craps, roulette, poker, baccarat, keno and slot machines.
- 1992–1993 – Tribal gaming compacts take effect: The state begins entering into gaming compacts with federally recognized tribes. For example, the state’s compact with the Kootenai Tribe was signed on September 8, 1993, and approved by the U.S. Department of the Interior on November 10, 1993.
- 2002 – Voters approve Proposition 1: Voters approve the Indian Gaming and Self-Reliance Act. The measure permits qualifying lottery-style video gaming machines at tribal properties, establishes limits on the number of machines and provides for tribal contributions to nearby educational programs.
- 2006 – Tribal video gaming survives a federal court challenge: The Ninth Circuit upholds the ability of tribes to offer the video gaming machines permitted under Proposition 1 and their tribal-state compacts.
- 2013 – Historical horse racing machines are authorized: State lawmakers permit wagering on previously conducted horse races through electronic terminals to support a live racing industry.
- 2015 – Historical horse racing authorization is repealed: Following disputes over whether the terminals operated too much like slot machines, lawmakers repeal the 2013 authorization. Traditional live racing, simulcast wagering and approved advance-deposit wagering remain within the state’s regulated pari-mutuel framework.
- 2025 – Sports-event contracts attract state scrutiny: Federally regulated platforms begin offering sports-related event contracts. State officials characterize these products as sports betting rather than ordinary financial trading.