Groton-Dunstable Regional School District 2019-2020 School Year Groton-Dunstable Regional School District will open its doors for the 2019-2020 school year on Wednesday, August 28, 2019, for students in grades 1-12. Kindergarten parents will receive a letter from their child’s school regarding the bus introduction program scheduled for Wednesday, August 28, 2019. If you have any … read more