russia is a country that is both in europe and in asia. the border is the ural mountains and ural river. by geography, about twenty-five percent of the surface is in europe, and seventy-five percent is in asia. by population, about 110 million of the 144 million people, or 77%, live in the european part. the european part makes up 35 % of the surface of europe. in the european part of russia, there are 27.5 people per square kilometer. the asian part has 22 % of the population, which means there are 2.5 people per square kilometer.