Dunkin' Donuts 286 Lincoln St, Lexington, MA02421 Dunkin' Donuts is located inside of the Sunoco station on Lincoln Street, at the intersection of Marrett Road. It opened…More in 2007. Dunkin' Donuts offers coffee, donuts and sandwiches sold seven days a week from early morning until late evening. The most popular donut sold at this location is chocolate frosted. They also sell a lot of iced coffee and sandwiches. Dunkin' Donuts supports many local community organizations, such as the police and fire departments, schools and Lexington Little League.