Number of languages by country:
Papua New Guinea: 840
Indonesia: 710
Nigeria: 524
India: 453
USA: 335
Australia: 319
China: 305
Mexico: 292
Cameroon: 275
Brazil: 228
Canada: 195
Philippines: 191
Russia: 159
Germany: 95
Pakistan: 85
UK: 85
Iran: 84
Turkey: 54
Israel: 53
Netherlands: 50
Venezuela: 48
Ukraine: 48
Kazakhstan: 48
Italy: 47
Norway: 47
South Africa: 42
France: 42
Argentina: 40
Denmark: 39
Sweden: 37
Austria: 36
Spain: 34
Poland: 27
UAE: 27
Saudi Arabia: 25
Egypt: 23
Japan: 19
Ireland: 13
Belarus: 11
South Korea: 5
Iceland: 2
Vatican: 2
North Korea: 1
According to the 22nd edition of Ethnologue (2019)
Papua New Guinea: 840 Indonesia: 710 Nigeria: 524 India: 453 USA: 335 Australia: 319 China: 305 Mexico: 292 Cameroon: 275 Brazil: 228 Canada: 195 Philippines: 191 Russia: 159 Germany: 95 Pakistan: 85 UK: 85 Iran: 84 Turkey: 54 Israel: 53 Netherlands: 50 Venezuela: 48 Ukraine: 48 Kazakhstan: 48 Italy: 47 Norway: 47 South Africa: 42 France: 42 Argentina: 40 Denmark: 39 Sweden: 37 Austria: 36 Spain: 34 Poland: 27 UAE: 27 Saudi Arabia: 25 Egypt: 23 Japan: 19 Ireland: 13 Belarus: 11 South Korea: 5 Iceland: 2 Vatican: 2 North Korea: 1According to the 22nd edition of Ethnologue (2019)