Births per 1,000 women, by age of mother

Fertility in Northern America, 1971

Northern America
1971
Total fertility rate: 2.30
Total fertility rate, 1950–2100 · click to pick a year

Year

-5 -1   1971  +1 +5

Country

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

The total fertility rate of Northern America was 2.30 children per woman in 1971 — above the replacement level of about 2.1. Births were most frequent among women aged 20-24 (153 per 1,000 women in that age group), and the average mother was 26.1 years old. In total, 4,069,268 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
2.30
Births
4,069,268
Births per 1,000 people
17.5
Mean age of mothers
26.1
Births to mothers aged 15–19
16.7%
Net reproduction rate
1.08
Boys per 100 girls at birth
105.3
Population
232,426,953
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.
Mother's ageBirths per 1,000 womenShare of total fertilityBirths
10-141.30.3%15,545
15-1961.913.5%678,268
20-24153.433.4%1,535,636
25-29135.829.6%1,121,108
30-3469.315.1%473,684
35-3929.56.4%190,954
40-447.41.6%49,806
45-490.60.1%4,214
50-540.00.0%53