The trade magazine said the chicken chain is poised to overtake Dunkin' Donuts as the 7th largest chain in the country this year, after posting $7.9 billion in sales last year, up nearly 73 percent in five years.
That also puts it within striking distance of Wendy's Co., which has sales topping $9 billion, including its franchisees.
Chick-fil-A's growth is driven by new locations but also by impressive sales per restaurant, which the publication said are nearly $3.9 million, despite the chain being closed on Sundays in accordance with its religious founders' beliefs.
Wendy's restaurants average $1.57 million, the company reported last year.
Atlanta-based Chick-fil-A had 2,085 restaurants at the end of 2016, up 25 percent from five years ago. It recently announced it was opening a location at Grandview Yard.
Wendy's operates 6,537 restaurants in the U.S. and several other countries.