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how many europeans lived in china prior to communist takeover

The number was probably small—most likely only in the low thousands, and in many places far fewer before the Communist takeover in 1949. The best- supported wording from the sources is that there was a “small number of Europeans” living in the PRC during the Mao era, while foreign communities in major treaty-port cities like Shanghai had already shrunk sharply by then.

What that means

  • Europeans in China were not a large settled population nationwide; they were concentrated in a few cities and institutions.
  • Many were diplomats, missionaries, traders, journalists, or technical experts rather than long-term migrant communities.
  • One source on Mao-era Europeans explicitly says the community was “very small,” even compared with the early 1970s.

Best rough estimate

For the whole of China , a cautious estimate would be a few thousand Europeans at most by the late 1940s , and likely fewer outside major foreign enclaves. The available sources do not give a single exact total for “all Europeans in China” right before 1949, so any precise number would be speculative.

Context

If you mean the treaty-port and concession era , foreign populations could be much larger in specific places. For example, Shanghai had about 100,000 foreigners by 1900 , but that figure includes many non-Europeans and reflects an earlier period, not the eve of communist rule.

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InterpretationAnswer
All Europe- wide residents in China, late 1940sProbably only a few thousand, with no clean exact count available
Specific foreign districts in major cities earlier onCan be much larger locally, especially in Shanghai and other ports
A good plain-English answer is: **not many—likely just a small remnant community rather than a sizable population**.