Yunnan is an inland province in Southwestern China. The province spans approximately 394,000 km² and has a population of 47.2 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 Myanmar, Vietnam, and Laos. …Yunnan is an inland province in Southwestern China. The province spans approximately 394,000 km² and has a population of 47.2 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 Myanmar, Vietnam, and Laos. Yunnan is China's fourth least developed province based on disposable income per capita in 2014.