According to Sports Betting Dime, U.S. online casino revenue topped $1 billion again in May, reaching $1.03 billion across the seven legal iGaming states. It was the fifth time in six months that the market had cleared that level.
The total was up 14.7% from May 2025 and 2.4% from April. Sports Betting Dime said growth had begun to slow compared with late 2025, even though six of the seven states still posted year-over-year gains of at least 10%.
Michigan remained the fastest-growing of the big three markets, staying above 20% year-over-year growth through 2026, while Pennsylvania and New Jersey hovered around 10% to 15%. Through five months, U.S. iGaming revenue stood at $5.04 billion.
