Which Country Has the Most Languages?

Papua New Guinea, a country about the size of California, has 820 different
languages.

Papua New Guinea has 820 different languages in use, the most languages of
any country. Although the country is about 178,703 square miles (462,840
square km), about the size of California, it has more than 10% of the
world's total number of languages, which is estimated to be about 6,900.
This is thought to be because Papua New Guinea is heavily segmented into
small tribes isolated by mountains, swamps and forests, which might have
led each tribe to develop its own languages and dialects. Papua New Guinea
does, however, have only three official languages: Tok Pisin, Hiri Motu and
English.
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