Online gaming in the United States is at an all-time high. Multiple experts and signs point to that not changing anytime soon.

While online casino gaming in the United States, specifically, has always enjoyed a strong presence, activity has picked up in recent years. Two developments, in particular, have laid the groundwork.

First, there was the Supreme Court of the United States overturning the Professional and Amateur Sports Protection Act back in 2018. This development gave each state the individual power to legalize online sports betting, which directly impacted online casino usage. Sure, in theory, it was another market with which online casinos needed to grapple. But as a thorough Lucky Rebel sportsbook review recently pointed out, operators tend to dabble in both. And if a sportsbook is promoting online casino material, it increases the likelihood of consumers becoming regulars elsewhere once they are familiar with the industry.

On top of all that, the COVID-19 pandemic both forced and encouraged businesses and consumers to engage in more remote activity. That organically favors an uptick in online casino activity. As Will Jones writes for Tuscon.com:

“In a manner akin to various other online exclusive features, real-money online casinos experienced significant growth in 2020. The lockdowns prompted by COVID-19 resulted in large segments of the population remaining indoors for unprecedented durations, leading consumers to increasingly explore online options. This pronounced shift to digital resources for diverse purposes, ranging from entertainment to education to communication, has increased public engagement with online platforms.”

Many wondered whether this increase in online gaming activity might regress to previous norms as more time and space was put between society and the global pandemic. Years removed from the apex of COVID-19 protocols, it hasn’t. In fact, online casino gaming is only on the rise.

Online Casino Gaming Growth is Virtually Universal

In retrospect, the rise of online gaming may have always been predictable. The global pandemic may have abruptly shifted consumer habits, but the digital age was on the climb long before 2020.

Social media has fundamentally changed the way people interact with each other, and their devices. This constantly online way of life has lent itself to more mobile transactions across virtually every industry. People appreciate, if not demand, the convenience of completing tasks and entertaining themselves using devices already in-hand.

For online casino gaming, specifically, its popularity can be traced back to accessibility. Not everyone lives near a brick-and-mortar casino. Mobile casino sites and apps ensure they don’t have to make every attempt to play a big to-do. It can be done whenever, from wherever.

The data backs this up. Through the first eight months of the 2025 calendar year, online gross gaming revenue is up significantly from 2024, with only a few individual markets reporting downswings. From the American Gaming Association:

“According to state regulatory data compiled by the AGA, August commercial gaming industry revenue from traditional casino games, sports betting, and iGaming reached $6.46 billion, 14.6 percent higher than the previous year and the best August performance on record.

“Through August 2025, commercial gaming revenue is $51.14 billion, 8.9 percent higher than the same period last year .Nationwide, the legal casino gaming, sports betting and iGaming verticals generated $1.47 billion in state gaming tax revenue in August and have paid nearly $11.86 billion in gaming taxes alone over the first eight months of the year. Of the 37 commercial gaming jurisdictions that were operational a year ago and had published complete August data, all but Oklahoma ( down 3.3 percent) reported an increase in combined revenue from traditional casino games, sports betting and iGaming.”

Flirting with double-digit growth patterns year-over-year is quite a big deal. Sure, it is one thing when it happens across a singular subset of online gaming. But these figures incorporate legal online casino gaming, sports betting and every other iGaming vertical you can think of.

Online Casino Growth Shows No Signs of Slowing

What’s more, online gaming growth in the United States shows no signs of stopping.

According to a study from Renub Research, online casinos specifically will be “one of the top drivers” for the United States’ gaming industry. Their market, the study says, was worth $75.7 billion in 2024, and it is expected to surge to $126.2 billion by the year 2033.

Make no bones about it, this is a monstrous increase. It is over 66 percent larger than the current market overall, and that comes about to more than 7 percent market growth per year during the time between now and 2033.

Now, margins for error must be taken into account. But this works both ways. Though there is a chance Renub Research overshoots with its projections, there’s also a chance they prove to conservative. Remember, few saw the United States’ online casino industry turning into what is now.

And mind you, this with just seven states officially legalizing online casino gaming.

More states are expected to pass some type of legislation in the coming years. If and when this happens, any and all estimates may need to be recalibrated. And this is tantamount to saying they will need to be recalibrated.

The USA’s relationship with all online gaming forms is complicated, but has generally never been more positive. That is why nearly 40 states have legal sports betting. It is also why most expect the online casino industry to continue expanding in the coming years—both financially, and in terms of wider-spread legality.