Figures released Friday by the state Division of Gaming Enforcement show the eight casinos that began the year collectively earned an operating profit of more than $587 million.
The figures provide new evidence that Atlantic City's casino industry is stabilizing after a brutal three-year period in which five of its 12 casinos shut down.
When the now-shuttered Trump Taj Mahal casino is removed from the equation, the figure rises to a 9 percent profit increase for the surviving seven casinos. The Taj closed in October.
The Borgata posted the largest profit with nearly $245 million.
Gross operating profit reflects earnings before interest, taxes and other charges, and is a widely accepted measure of profitability in the casino industry.