U.S. iCasino Market Smashes Records in March

In a historic month for the regulated U.S. iCasino market, online casino platforms across seven states generated an unprecedented $905.6 million in gross revenue in March—marking a 26.2% year-over-year increase and signaling a new era of mainstream growth for the industry.

*Connecticut, Delaware, Rhode Island, and West Virginia

Rather than simply breaking records, March saw them obliterated, driven in large part by strategic cross-promotion between digital casino offerings and mobile sports wagering during the NCAA Tournament. As the most-watched annual sports betting event in the United States, the multi-week March Madness competition presented operators with a golden opportunity to introduce casual and new bettors to other gambling verticals.

Each of the seven states with legalized iCasino platforms—Connecticut, Delaware, Michigan, New Jersey, Pennsylvania, Rhode Island, and West Virginia—posted year-over-year gains of 20% or more in either gross or adjusted gross revenue (AGR). All seven states also set all-time monthly highs in at least one of those categories.

Leading the charge was Pennsylvania, which reported a staggering $291.6 million in gross revenue. The state's adjusted gross revenue reached $238.2 million—surpassing the total gross earnings of the previous year’s March. Pennsylvania’s rapid growth underscores how quickly consumer engagement has scaled in markets where digital gambling options are maturing.

Other powerhouses included Michigan and New Jersey, both of which crossed the $240 million threshold in gross revenue. Michigan in particular saw substantial engagement, thanks in part to targeted promotional efforts coinciding with the NCAA basketball frenzy.

The so-called “Small 4”—Connecticut, Delaware, Rhode Island, and West Virginia—also pulled their weight in achieving the national record. While these states contribute a smaller share to overall national figures, their consistent double-digit growth was essential in pushing the cumulative total past the $900 million mark.

State governments reaped significant fiscal benefits from this surge. In March, they collectively received $177.1 million in revenue from the $827.6 million in adjusted gross revenue. That represents a $41.1 million increase compared to the same month in 2024, further highlighting the sector’s growing importance as a tax revenue stream. This total does not account for additional revenues collected by local jurisdictions.

March wasn’t just a strong month for online casinos—it was a defining moment that proved the power of strategic cross-promotion and the growing normalization of digital gaming across the U.S.

Outlook

Industry analysts suggest that the convergence of sports and casino gaming, combined with increasingly sophisticated marketing and user engagement strategies, could signal a sustainable trajectory for the U.S. iCasino sector. However, some caution that this level of growth will eventually plateau as markets reach maturity and expansion slows in the absence of new state-level legalization.

Still, March 2025 stands as a watershed moment—proof that iCasino platforms are not only maturing but thriving in a competitive and highly regulated digital landscape.