Shantou, alternately romanized as Swatow and sometimes known as Santow, is a prefecture-level city on the eastern coast of Guangdong, China, with a total population of 5,502,031 as of the 2020 census and an administrative area of 2,248.39 square kilometres (868.11 sq mi). However, its built-up area is much bigger with 12,543,024 inhabitants including Rongcheng and Jiedong districts, Jiexi county and Puning city in Jieyang plus all of Chaozhou city largely conurbated. This is de facto the 5th built-up area in mainland China between Hangzhou-Shaoxing, Xian-Xianyang and Tianjin.

Guangdong is a coastal province located in South China, on the north shore of the South China Sea. The provincial capital is Guangzhou. With a population of 126.84 million across a total area of about 179,800 km2 (69,400 sq mi), Guangdong is the most populous province of China and the 15th-largest by area as well as the third-most populous country subdivision in the world.