Pennsylvania’s casinos pocketed a record $2.27 billion in winnings from slot machines in 2010 and should overtake Atlantic City this year if they continue to post red-hot revenue growth.

Slot revenue for 2010 jumped about 16 percent over 2009’s total of $1.96 billion, according to year-end figures released Tuesday by the Pennsylvania Gaming Control Board. Pennsylvania closed out the year with a strong December, taking in slot revenue of $174.7 million, up nearly 13 percent compared with the same month in 2009.

For now, Atlantic City’s 11 casino hotels maintain an edge in slot winnings over their 10 Pennsylvania rivals. Through November, Atlantic City grossed $2.3 billion from the slot machines. Final year-end figures for Atlantic City will be reported Monday by the New Jersey Casino Control Commission.

Competition from Pennsylvania and the sluggish economy have affected Atlantic City negatively. The resort town has suffered four straight years of declining revenue, including a 9 percent drop in slot winnings and a 10 percent decrease in table games revenue in the first 11 months of 2010.

In what would be a monumental shift in the market, Pennsylvania should be able to eclipse Atlantic City in slot revenue in 2011 if it maintains its double-digit growth and Atlantic City continues to falter.