This has been a source of debate for quite some time. Many sources cite that the Peoples Republic of China is larger in size than the United States. Others say that the United States is larger (however, these sources include certain water areas, such as the Great Lakes, for the United States, but does not include water areas for the Peoples Republic of China. They also tend to be United States-based operations). Chinas area includes disputed territories and therefore shouldnt be considered part of Chinas area since it is disputed. If including water area, China is larger than the US, but if including all territory that is undisputed, the US becomes larger than China. Overall, China is just slightly larger in size compared to the United States.