Chapman, TexasChapman is an unincorporated community in Rusk County, located in the U.S. state of Texas. According to the Handbook of Texas, the community had a population of 20 in 2000. It is located within the Longview, Texas metropolitan area.GeographyChapman is located on Texas State Highway 79 near Trammel's Trace, east of Henderson, west of Carthage, and southeast of Kilgore in eastern Rusk County.EducationToday, the community is served by the Henderson Independent School District.