China (ⁱ/ˈtʃaɪnə/; Chinese: 中国; pinyin: Zhōngguó; see also Names of China), officially the People's Republic of China (PRC), is the world's most-populous country, with a population of over 1.3 billion. The East Asian state covers approximately 9.6 million square kilometres, and is the world's second-largest country by land area, and the third- or fourth-largest in total area, depending on the definition of total area.