The total fertility rate of Least developed countries is projected at 3.38 children per woman in 2034 — above the replacement level of about 2.1. Births are projected to be most frequent among women aged 25-29 (165 per 1,000 women in that age group), and the average mother would be 28.6 years old. In total, 39,758,303 babies are projected to be born. Source: United Nations, World Population Prospects 2024 (medium-variant projection).

Key indicators, 2034

Total fertility rate

3.38

Births

39,758,303

Births per 1,000 people

27.0

Mean age of mothers

28.6

Births to mothers aged 15–19

13.9%

Net reproduction rate

1.54

Boys per 100 girls at birth

103.8

Population

1,474,385,502

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, 2034

Mother's age	Births per 1,000 women	Share of total fertility	Births
10-14	2.0	0.3%	165,338
15-19	75.2	11.1%	5,543,756
20-24	160.2	23.7%	10,650,786
25-29	164.8	24.4%	9,949,066
30-34	135.9	20.1%	7,319,233
35-39	88.7	13.1%	4,198,985
40-44	40.1	5.9%	1,609,222
45-49	9.0	1.3%	308,615
50-54	0.5	0.1%	13,296

Fertility in Least developed countries by year

Fertility in Least developed countries, 2034

Year

Country