Korea's population faces extinction by 2750 if the present low birthrate continues, according to one forecast.
The National Assembly Research Service on Friday said should last year's birthrate of 1.19 children per woman continue, Korea's population of 50 million will shrink to 10 million by 2136 and become extinct by 2750.
The projection is based on a simulation at the request of New Politics Alliance for Democracy lawmaker Yang Seung-jo.
David Coleman of Oxford University warned back in 2006 that Korea's low birthrate is so serious that it could become the first nation in the world to become extinct.
Under the new projection, Korea's population will fall to 40 million in 2056 and to 20 million in 2100. That would be similar to the population in 1930 during the Japanese occupation.
In 2200, the population would decrease to three million and to one million by 2256, gradually becoming extinct over the next 500 years.
Barring a major population migration within the country, the southern port city of Busan would be the first to become empty of people, according to the simulation. The last survivor of Busan will be born in 2413, and the last Seoulite in 2505.
Busan is not only graying rapidly, but is seeing a rapid decrease in the number of young and middle-aged residents.