Guangdong is not a city, it is the name of a province. Therefore, Guangdong does not belong to any province. Guangdong is Guangdong Province, referred to as Guangdong, and its capital is Guangzhou.
Extended information:
Guangdong Province (Administrative Region of China)
Guangdong, whose name evolved from Lingnan East Road and Guangnan East Road, is referred to as "Guangdong". Guangzhou, the provincial capital, is a province on the southern coast of mainland China.
It is located south of Nanling, on the coast of the South China Sea, bordering Hong Kong, Macau, Guangxi, Hunan, Jiangxi and Fujian, and facing Hainan across the sea. It has jurisdiction over 21 prefecture-level cities (including 2 sub-provincial-level cities) and 119 county-level administrative districts (60 municipal districts, 20 county-level cities, 36 counties, and 3 autonomous counties).
Guangdong is an important inheritance place for Lingnan culture and has unique styles in terms of language, customs, living habits, history and culture. Cantonese, Hakka and Min are spoken in Guangdong, and the centers of the two major dialects of Cantonese and Hakka are in Guangdong. Guangdong is also the most populous province in China.
Guangdong is the seat of the ancient "Pangu Kingdom in the South China Sea". Archeology has proven that Guangdong already had a high degree of civilization in the pre-Qin Dynasty and is one of the birthplaces of Chinese civilization.
Guangdong is the southern gate of China and is located at the shipping hub of the South China Sea. Since the Qin and Han Dynasties, the ancestors of Guangdong have embarked on the road of communication with other parts of the world through the ocean, becoming the earliest birthplace of the Maritime Silk Road. After the reform and opening up, Guangdong has become the forefront of reform and opening up and a window for the introduction of Western economy, culture, and technology, and has achieved remarkable results.
Since 1989, Guangdong’s GDP has continuously ranked first in the country and has become China’s largest economic province. Its total economic output accounts for 1/8 of the country’s total, and it has reached the level of an upper-middle-income country. , the level of moderately developed countries. The comprehensive competitiveness of Guangdong's provincial economy ranks first in the country. In 2016, the number of high-tech enterprises in Guangdong reached 19,857, ranking first in the country; the number of PCT international patent applications has led the country for 15 consecutive years.
The nine cities in the Pearl River Delta of Guangdong will join forces with Hong Kong and Macao to build the Guangdong-Hong Kong-Macao Greater Bay Area, becoming one of the four major bay areas in the world alongside the New York Bay Area, San Francisco Bay Area and Tokyo Bay Area. Guangdong has formed a world-class coastal urban belt led by the world-class Bay Area urban agglomeration of the Pearl River Delta and supported by the Shantou Chaojie urban agglomeration and Zhanmaoyang urban belt.
Reference materials:
Baidu Encyclopedia-Guangdong