Rehoboth, Harris County, GeorgiaRehoboth is an unincorporated community in Harris County, in the U.S. state of Georgia.Named Rehobeth according to the USGS.HistoryThe community was named after Rehoboth, a place mentioned in the Hebrew Bible. A variant name was "Mobley". Rehoboth was once an incorporated municipality; its municipal charter was repealed in 1995.