What was the total population of Chongqing before the Anti-Japanese War?

The history of a city is the history of people. Chongqing was first directly under the central government in 1935. Chongqing was upgraded to a municipality directly under the Central Government by the National Government. The city's population was about 300,000. With the influx of a large number of immigrants, the population increased to about 500,000 by 1937. During the eight years of the Anti-Japanese War, Chongqing's population increased sharply. In 1946, after the end of the Anti-Japanese War, the population reached 1.245 million. In addition to the offset of new births and deaths, the number of immigrants was about 900,000.