The total fertility rate of Least developed countries is projected at 3.24 children per woman in 2037 — above the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (159 per 1,000 women in that age group), and the average mother would be 28.6 years old. In total, 40,366,184 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).

Key indicators, 2037

Total fertility rate

3.24

Births

40,366,184

Births per 1,000 people

25.8

Mean age of mothers

28.6

Births to mothers aged 15–19

13.7%

Net reproduction rate

1.48

Boys per 100 girls at birth

103.8

Population

1,562,508,194

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, 2037

Mother's age	Births per 1,000 women	Share of total fertility	Births
10-14	1.9	0.3%	158,142
15-19	71.0	10.9%	5,538,819
20-24	153.2	23.6%	10,714,107
25-29	159.5	24.6%	10,100,532
30-34	131.5	20.3%	7,544,209
35-39	85.1	13.1%	4,318,100
40-44	37.7	5.8%	1,666,558
45-49	8.5	1.3%	312,246
50-54	0.4	0.1%	13,441

Fertility in Least developed countries by year

Fertility in Least developed countries, 2037

Year

Country