America is about to run on twice as much Dunkin'.

Dunkin' Donuts plans to double its locations in the United States over the next 20 years, the company announced Wednesday.  The coffee and doughnut chain currently operates nearly 7,000 stores nationwide. Each new store adds an average of 20 to 25 new employees, both full and part-time a Dunkin spokeswoman said. Dunkin' Donuts controls roughly 23% of the coffee and snack-shop market, according to Los Angeles-based industry research firm IBISWorld.