The earthquake and tsunami that struck the country last March are in part responsible for the record decline in population numbers. About 20,000 people were left killed or missing after the natural catastrophe.
Japan now has 126.24 million people.
2011 was the fifth consecutive year when the population dropped in Japan. The rapid ageing society is a growing problem in the Asian country.
According to officials of the health ministry, Japan’s population will continue to decrease at a faster pace in the following years, due to the rising number of senior citizens, while the younger generation is shrinking.