In 2025, the United States, Macau, and the United Kingdom lead in gross gambling revenues. However, Macau’s revenue is largely from its land-based casinos, as online gambling is limited by strict regulations.
The surge in global gambling revenue is being fueled by the rise of online gambling platforms. The global online gambling market is expected to reach more than $186 billion by 2029. Innovations such as mobile apps and AI are shaping the industry, and legalization is expanding. There are also various emerging markets where online gambling is growing due to the rising penetration of mobile devices.
United States
The US is at the top of global rankings in 2025 with over $150 billion in Gross Gambling Revenue (GGR). One out of three adults engages in online gambling in North America, and revenue is expected to reach $40 billion by 2029. The regulation of online gambling and sports betting is driving the rapid growth of gambling.
States like Pennsylvania and New Jersey keep setting online gambling revenue records. Sports betting is legal in most states, and Americans love to bet on games like American football and basketball. Investment in technology and the growth in consumer spending on gambling are keeping the U.S. at the top in the rankings. The use of mobile casino apps and live betting with its social component contributes to a healthy market.
United Kingdom
Land-based gambling is dominant across most of Europe, but the UK shows high online penetration. It earns $15 billion in GGR, and mobile platforms are responsible for 56% of the gambling revenue. Player trust in gambling platforms is high, with the UKGC helping to build this stability and trust. In the UK, many professional gamblers are able to have a fulfilling career due to the strict regulations and stability of the industry.
Canada
Gambling in Canada is regulated by the provinces, and the gambling market generates $12 billion in GGR. Canada’s online gambling market is highly competitive, reflecting how effective regulation and innovative technology can drive industry growth. Responsible gambling is a priority with bet limits and self-exclusion programs.
Australia
Australia has the highest per capita gambling spend and brings in $10 million in GGR. Some of the best online game providers come from Australia. Gambling online on lotteries, racing, and sports is legal in Australia, but online poker isn’t legally available to play for real money. Australia may have a relatively small population, but it remains a global force when it comes to gambling.
Emerging markets
In emerging markets like India, Nigeria, and Brazil, the iGaming market size is rapidly advancing. This is being fueled by the high use of mobile phones and evolving regulations. Operators who keep track of local trends in these countries can benefit.
Mobile betting apps are driving growth in Nigeria, and soccer betting is most popular. Its potential as the largest economy in Africa ensures it will continue to be prominent in the emerging online gambling market.
India and Brazil have high mobile penetration and large populations. Online betting on cricket is very popular in India. The rise of fantasy sports leagues has also accelerated growth. Gambling was largely unregulated in the early years, but there’s been a shift towards legalization and digital adoption. There are some ongoing legal framework-related processes in India, and there might be policy-level changes soon. Once Brazil stabilizes its legal framework, online betting could explode. Betting on soccer is popular in Brazil.
Global challenges
With easy access to online gambling comes more potential for addiction. As more people shift online, countries that balance responsible gambling with innovation are likely to lead. Operators must offer responsible gambling measures.
Varying laws across countries make regulation fragmented, complicating operators’ plans. Fraud and compliance regulations, such as KYC/AML checks and ad restrictions, raise costs for online operators. Addressing these issues is essential for operators who want to promote trust and sustain their growth.