Tây Ninh is a provincial city in Southeastern Vietnam. It is the capital of Tây Ninh Province, which encompasses the town and much of the surrounding farmland. Tay Ninh is one of nine provinces and cities in the Southern Key Economic Region. Tây Ninh is approximately 90 km northwest of Ho Chi Minh City, Vietnamese largest city and 182 km to Phnom Penh, capital of Cambodia. As of 2019, the city had a population of 135,254 over the provincial population of 1,169,165, and a total area of 140 km2 (54 sq mi).

Đông Nam Bộ is a region in Vietnam. This region includes one municipality, Ho Chi Minh City; and five provinces: Đồng Nai, Bình Dương, Bà Rịa–Vũng Tàu province, Bình Phước and Tây Ninh. The two south central provinces Ninh Thuận and Bình Thuận are sometimes seen as part of the Southeast region. This region is the most economically developed region in Vietnam. In 2006, this region contributed 148,000 billion VND out of 251,000 billion VND to the state budget. This region is also the most highly urbanized in the country with more than 50% people living in urban areas.