The total fertility rate of Least developed countries is projected at 3.02 children per woman in 2043 — above the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (151 per 1,000 women in that age group), and the average mother would be 28.7 years old. In total, 41,888,528 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).

Key indicators, 2043

Total fertility rate

3.02

Births

41,888,528

Births per 1,000 people

24.1

Mean age of mothers

28.7

Births to mothers aged 15–19

13.1%

Net reproduction rate

1.39

Boys per 100 girls at birth

103.7

Population

1,740,013,102

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, 2043

Mother's age	Births per 1,000 women	Share of total fertility	Births
10-14	1.6	0.3%	144,349
15-19	64.1	10.6%	5,483,205
20-24	140.9	23.3%	11,039,994
25-29	150.5	24.9%	10,556,187
30-34	125.5	20.8%	7,969,637
35-39	79.6	13.2%	4,597,306
40-44	34.3	5.7%	1,755,868
45-49	7.4	1.2%	328,142
50-54	0.4	0.1%	13,834

Fertility in Least developed countries by year

Fertility in Least developed countries, 2043

Year

Country