WHICH COUNTRIES ARE THE BIGGEST ONLINE CASINO GAMBLERS & WHAT ARE THE FUTURE FORECASTS?

A World Obsessed With Online Gambling

Online gambling has become a global industry worth tens of billions annually, transforming from a niche internet activity into one of the fastest-growing entertainment sectors in the world.

Mobile technology, changing regulations, and the excitement of casino gaming have all helped push this digital revolution.

But which countries actually gamble the most online?

And which ones are set to dominate the future of online casinos?

Combining the latest industry reports, per-capita spending data, and gambling regulations, we’ve compiled a definitive look at today's top 10 online casino nations, plus forecasts for tomorrow’s biggest markets.

The Global Online Casino Market

·     The global online casino market is valued at $19.7 billion in 2024 and is forecast to grow to $56.8 billion by 2033, a compound annual growth rate (CAGR) of 12.5% (Custom Market Insights, 2025).
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·     The wider online gambling market (including sports betting, poker, bingo) was worth $78.7 billion in 2024, and is projected to reach between $130–150 billion by 2030 (Grand View Research, 2025).
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·     Europe remains the largest region, accounting for more than 40% of the market, but North America and Asia-Pacific are the fastest-growing.

With this global backdrop, let’s rank the 10 biggest online casino gambling nations.

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A background of the american flag with a mobile phone on a green felt top table, on the screen is a make croupier standing at s green felt table with stacks of ooloured poker chips

UNITED STATES, UNITED KINGDOM & AUSTRALIA

1. United States – The Giant Awakens

· Current revenue: Forecast $34 billion in 2024 (Casino.org, 2024).

· Why big: Sports betting legalisation across dozens of states has fuelled explosive growth. Online casinos are only legal in a handful of states (New Jersey, Pennsylvania, Michigan), but the revenue numbers are staggering.

· Player behaviour: Slots and live dealer games dominate regulated casino states, while poker maintains a loyal following.

· Future forecast: If more states open up to online casinos, the U.S. could exceed $60 billion annually by 2030, making it the undisputed global leader.

2. United Kingdom – Mature but Mighty

· Current revenue: Online gambling contributes around £14 billion ($20.8 billion) in 2024 (UK Gambling Commission, 2024).

· Why big: The UK has one of the world’s most mature, regulated markets. The UK Gambling Commission (UKGC) sets strict standards for fairness, responsible gambling, and player protection.

· Player behaviour: Online slots account for over 70% of casino revenue, with Starburst, Rainbow Riches, and Book of Dead leading the pack.

· Future forecast: Growth is slowing due to market maturity and tighter advertising restrictions, but the UK will remain a global benchmark for regulated online casinos.

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3. Australia – The Per-Capita King

· Current spending: Australians lose more money per person to gambling than any other nationality, with AUD $31.5 billion lost in 2022–23 (Australian Gambling Statistics, 2024).

· Why big: Despite strict restrictions, Australians love offline and online pokies (slots). Online casino play via offshore operators is widespread.

· Player behaviour: Pokies (slots) dominate, but table games like blackjack and roulette also have loyal followings.

· Future forecast: Regulatory pressure may curb growth, but per-capita spending will likely remain world-leading.

CANADA, BRAZIL, INDIA & PHILIPPINES

4. Canada – The Rising Star

· Current engagement: An estimated 48.6% of Canadians gamble online in 2024 (Casino.org, 2024).

· Why big: Ontario launched its own regulated online gambling market in 2022, attracting global brands like BetMGM, Draft Kings, and Bet365.

· Player behaviour: Canadians are embracing slots and live dealer games, with strong crossover interest in sports betting.

· Future forecast: Canada is expected to have one of the highest CAGRs globally (2025–2030) (Grand View Research, 2025).

5. Brazil – Latin America’s Sleeping Giant

· Current position: The 7th-largest gambling market globally following sports betting regulation in 2018 (Financial Times, 2024).

· Why big: Brazil has a massive population and a strong appetite for sports betting and casino-style games, though casino laws remain murky.

· Player behaviour: Slot games and live dealer tables are hugely popular among younger players.

· Future forecast: Full regulation of online casinos could propel Brazil into the global top 3 by 2030.

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6. India – The Mobile Superpower

· Current status: One of the world’s largest online player bases, driven by over 600 million smartphone users (Statista, 2025).

· Why big: Games like rummy, teen patti, and roulette are booming. Younger demographics and cheap mobile data are fuelling growth.

· Future forecast: The 2025 Promotion and Regulation of Online Gaming Act is expected to formalise and regulate online gambling, potentially making India the largest player base globally within a decade.

7. Philippines – Asia’s iGaming Hub

· Current role: The Philippine Amusement and Gaming Corporation (PAGCOR) licences hundreds of operators, making the Philippines a central hub for Asia’s online gambling industry.

· Why big: The country has a domestic player base and hosts infrastructure for international iGaming operations.

· Future forecast: Continued role as a hub for Asia-Pacific, especially as nearby China keeps online gambling illegal.

A Canadian flag in the background with a mobile resting on a green felt top table in the centre showing a slot game similar to Sugar Rush on the mobile screen

An image of a mobile phone in the centre with a female croupier standing behind a roulette wheel and the background is the German flag

GERMANY, JAPAN, SOUTH AFRICA & GLOBAL FORECASTS

8. Germany – Europe’s Heavyweight

· Current status: Germany legalised online slots and poker in 2021 under the Interstate Treaty on Gambling.

· Why big: With over 80 million people, Germany represents one of Europe's largest untapped regulated casino markets.

· Player behaviour: Slots and roulette dominate early adoption.

· Future forecast: Growth may be tempered by strict limits (like €1 per spin on slots), but overall revenue potential is enormous.

9. Japan – The Cautious Giant

· Current situation: While online casinos are technically illegal, Japanese players spend billions annually on offshore sites.

· Why big: Japan has a deep cultural affinity for games of chance, from pachinko to mahjong.

· Future forecast: If Japan were to regulate online casinos, analysts suggest it could immediately rank in the global top 5.

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10. South Africa – Africa’s Leader

· Current status: The largest regulated gambling market in Africa. Online casinos remain in a legal grey zone, but players widely use licensed offshore operators.

· Why big: Mobile-first gambling has exploded, particularly in slots and roulette.

· Future forecast: If South Africa fully regulates online casinos, it will solidify its position as Africa’s gambling hub.

Global Forecasts: Where Online Gambling Is Headed

· Global CAGR: Online gambling is expected to grow at 10–12% CAGR through 2030 (Grand View Research, 2025).

· North America: The U.S. and Canada will continue to dominate revenue, powered by regulation and technology adoption.

· Europe: Growth will be steadier due to mature markets and stricter regulation.

· Asia-Pacific: If regulated, explosive growth is expected in India, Philippines, and Japan.

· Latin America: Brazil will be the standout growth story, with Argentina and Mexico also seeing expansion.

· Africa: South Africa will lead, with Kenya and Nigeria emerging as mobile-first gambling markets.

The background is the Japanese flag and in the centre is a mobile phone with Mahjong tiles on the screen

OVERVIEW

From the mature markets of the UK and Australia to the rising giants of India and Brazil, online gambling is no longer a regional phenomenon; it’s a global entertainment powerhouse.

The data suggests that while Europe remains the heart of regulation, the future lies in North America, Asia, and Latin America, where massive populations, mobile adoption, and shifting rules will redefine the casino industry.

One thing is clear: the world’s appetite for online casinos is growing and whether you’re spinning reels in London, Mumbai, or São Paulo, the thrill of the game is now truly global.

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