Stratford is an unincorporated community in Delaware County, in the U.S. state of Ohio. Stratford was platted in 1850. However, Stratford appears to have already been platted in 1849. A map of Delaware County at the Library of Congress shows Stratford platted then. The community derives its name from Stratford-upon-Avon, England. A post office was establ…Stratford is an unincorporated community in Delaware County, in the U.S. state of Ohio. Stratford was platted in 1850. However, Stratford appears to have already been platted in 1849. A map of Delaware County at the Library of Congress shows Stratford platted then. The community derives its name from Stratford-upon-Avon, England. A post office was established at Stratford in 1850, and remained in operation until 1900.