Sachse is a city in Collin and Dallas counties in the U.S. state of Texas and is part of the DFW metroplex. A northeastern suburb of Dallas, the city population was 27,103, as of the 2020 census with an estimated population of 33,768 people today. Sachse is located off Texas State Highway 78 and President George Bush Turnpike and is approximately 1 mile north of the Firewheel Town Center.