Qīngyuǎn (Chinese: 清远), is a prefecture-level city in northwestern Guangdong province, People's Republic of China. Its population was 3,698,412 at the 2010 census whom 1,510,044 lived in the built-up (or metro) area made of Qingcheng and Qingxin urban Districts largely being urbanized. The primary language spoken is Cantonese. With an area of 19,015 km² (7,342 sq mi), Qingyuan is the largest prefecture-level city by land area in the province.