North Asia or Northern Asia, also referred to as Siberia, is the northern region of Asia, which is defined in geographical terms. It is solely administrated by Russia; and consists of the Russian regions east of the Ural Mountains: Ural, Siberia and the Russian Far East. North Asia is bordered by the Arctic Ocean to its north, by Eastern Europe to its west, by Central and East Asia to its south, and by the Pacific Ocean and North America to its east. The region covers an area of approximately , or 8.8% of Earth's total land area. It is the largest subregion of Asia by area, but is also the least populated, with an approximate population of only 33 million people or only 0.74% of Asia's population.