Monoethnicity in the context of Ethnic majority

The demographics of North Korea are determined through national censuses and international estimates. The Central Bureau of Statistics of North Korea conducted the most recent census in 2008, where the population reached 24 million inhabitants. The population density is 199.54 inhabitants per square kilometre, and the 2014 estimated life expectancy is 69.81 years. In 1980, the population rose at a near consistent, but low, rate (0.84% from the two censuses). Since 2000, North Korea's birth rate has exceeded its death rate; the natural growth is positive. In terms of age structure, the population is dominated by the 15–64-year-old segment (68.09%). The median age of the population is 32.9 years, and the gender ratio is 0.95 males to 1.00 female. Since the early 1990s, the birth rate has been fairly stable, with an average of 2 children per woman, down from an average of 3 in the early 1980s.

According to The World Factbook, North Korea is racially homogeneous and contains a small Chinese community and a few ethnic Japanese. The 2008 census listed two ethnicities: Korean (99.998%) and Other (0.002%). Korea was annexed by the Empire of Japan in 1910, in which the Korean Peninsula was occupied by Japanese. In 1945, when Japan was defeated in World War II, Korea was divided into two occupied zones: north occupied by the Soviet Union and the south by the United States. Negotiations on unification failed, and in 1948 two separate countries were formed: North and South Korea.