From one of the last estimates, over 1.7 billion people live in China.
The official language is standard Chinese which is based on the Mandarin dialect. More than 70 percent of the population speak Chinese, however, many Chinese can speak Cantonese, Wu, and Kejia. English is known very well amongst business people.
The Chinese government still pushes Atheism, but because of the constitution in China, there is religious freedom. Within China, there are a few religions that arel the most popular; Buddhism, Confucianism, Taoism, Islam, and Christianity.
The currency in China is the reminbi (RMB) and they are 13 hours ahead of U.S. Eastern Standard time.