New Wehdem is an unincorporated community in Austin County, in the U.S. state of Texas. According to the Handbook of Texas, the community had a population of 100 in 2000. It is located within the Greater Houston metropolitan area.
New Wehdem is located just off Texas State Highway 36, northwest of Bellville, north of Sealy and south of Brenham in northern Austin County.
New Wehdem is served by the Bellville Independent School District.