Marlboro is a census-designated place in Stark County, Ohio, United States. Marlboro was laid out in 1827, taking its name from Marlboro Township. The community was originally built up chiefly by Quakers. By 1833, Marlborough had about 50 inhabitants. A post office called Marlborough was established in 1833, the name was changed to Mar…Marlboro is a census-designated place in Stark County, Ohio, United States. Marlboro was laid out in 1827, taking its name from Marlboro Township. The community was originally built up chiefly by Quakers. By 1833, Marlborough had about 50 inhabitants. A post office called Marlborough was established in 1833, the name was changed to Marlboro in 1893, and the post office closed in 1906.