Yunnan is an inland province in Southwestern China. The province spans approximately 394,000 km2 (152,000 sq mi) and has a population of 48.3 million. The capital of the province is Kunming. The province borders the Chinese provinces of Guizhou, Sichuan, autonomous regions of Guangxi and Tibet, as well as Southeast Asian countries Vietnam, Laos, and Myanmar. Yunnan is China's fourth least developed province based on disposable income per capita in 2014.

Kunming is the capital and largest city of Yunnan province, China. It is the political, economic, communications and cultural centre of the province as well as the seat of the provincial government. The city was of great significance during World War II as a Chinese military center, American air base, and transport terminus for the Burma Road. In the middle of the Yunnan–Guizhou Plateau, Kunming is at an altitude of 1,900 metres above sea level and a latitude just north of the Tropic of Cancer. The city is the fourth most populous city in Western China, after Chongqing, Chengdu, and Xi'an, as well as the third most populous city in Southwestern China after Chongqing and Chengdu. As of 2020 census, Kunming had a total population of 8,460,088 inhabitants, of whom 5,604,310 lived in its built-up area made of all urban districts but Jinning, not conurbated yet. It is at the northern edge of Dian Lake, surrounded by temples and lake-and-limestone hill landscapes.