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Officially there are currently 196 countries in the world. Out of those 192 are United Nations members.
I've also added various stats and links to each country, so if you're wondering what a country's capital, main languages, main religions, currency, where it's located in the world and so on - you can find it all here. Do note however that it's not only the official languages and religions that were added in the stats - but also "main" languages / religions used in those countries.
Note: If you find anything I've missed in regards to these countries then please Contact Us.