The total fertility rate of Least developed countries is projected at 3.20 children per woman in 2038 — above the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (158 per 1,000 women in that age group), and the average mother would be 28.6 years old. In total, 40,618,474 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).

Key indicators, 2038

Total fertility rate

3.20

Births

40,618,474

Births per 1,000 people

25.5

Mean age of mothers

28.6

Births to mothers aged 15–19

13.6%

Net reproduction rate

1.47

Boys per 100 girls at birth

103.8

Population

1,591,936,909

The net reproduction rate counts only daughters who survive to their mothers' age: below 1, each generation of women is smaller than the one before.

Fertility by age of mother, 2038

Mother's age	Births per 1,000 women	Share of total fertility	Births
10-14	1.8	0.3%	156,089
15-19	69.7	10.9%	5,541,026
20-24	151.0	23.6%	10,762,717
25-29	158.0	24.7%	10,162,704
30-34	130.3	20.3%	7,620,952
35-39	84.1	13.1%	4,365,777
40-44	37.0	5.8%	1,680,805
45-49	8.3	1.3%	314,894
50-54	0.4	0.1%	13,482

Fertility in Least developed countries by year

Fertility in Least developed countries, 2038

Year

Country