Gresston, GeorgiaGresston is an unincorporated community in Dodge County, in the U.S. state of Georgia. It was listed as a census-designated place following the 2010 census but was no longer one by the time of the 2020 census.HistoryA post office called Gresston was established in 1885, and remained in operation until 1955. The community was named after George V. Gress, proprietor of a local sawmill.