The age structure of the American population

The United States is the only developed country in the world with a normal total fertility rate, and its population age structure is also the youngest among all developed countries.

According to the results of the 2020 census, the proportion of white people in the United States fell below 60% for the first time since records began, while the population of multi-ethnic or colored people now exceeds 40%. In the past decade (20 10-2020), the population of the United States increased by 7.4%, the lowest level since the 1930s. ?

Population growth:

According to the United States total fertility rate of 20 1 1, each woman gives birth to about 1.89 children. Compared with other western countries such as France (2.02) and Britain (1.97), the fertility rate in the United States is relatively low.

However, the population growth rate in the United States is the highest among industrialized countries, because the growth of immigrant population is more important. According to the data of the U.S. Census Bureau, the population growth rate of the United States was 0.75% in the twelve months ending July 20 12, but it was still lower than the world average annual growth rate (1.09%).

The population of the United States has more than tripled since the 20th century. From 76 million in 1900 to 281000 million in 2000, with an average annual growth of 1.3%. At present, the population of ethnic minorities has the fastest growth rate. According to the Census Bureau's estimate of 20 12, 50.4% of American children under one year old belong to ethnic minorities.