User blog comment:Madman97/You know what really grinds my Wabbajack's? S3E7: Lack of focus on differing races./@comment-11766885-20140126211651/@comment-13446185-20140127235321

Size of Tamriel varies quite largely from source to source.

I normally go with MK's scale as it is the most direct and recent sizing of Tamriel.

In MK's scale, Tamriel is around the size of Asia.

Population would be harder to determine, my guess would be around 150 million people based on real world calculations.