Births per 1,000 women, by age of mother

Fertility in United States of America, 2012

United States of America
2012
Total fertility rate: 1.86
Total fertility rate, 1950–2100 · click to pick a year

Year

-5 -1   2012  +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 United States of America was 1.86 children per woman in 2012 — below the replacement level of about 2.1. Births were most frequent among women aged 25-29 (106 per 1,000 women in that age group), and the average mother was 28.6 years old. In total, 3,942,569 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
1.86
Births
3,942,569
Births per 1,000 people
12.4
Mean age of mothers
28.6
Births to mothers aged 15–19
7.6%
Net reproduction rate
0.90
Boys per 100 girls at birth
104.7
Population
317,115,355
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
10-140.50.1%4,541
15-1929.47.9%301,275
20-2482.622.1%911,870
25-29105.728.3%1,133,262
30-3496.525.9%1,014,237
35-3947.612.8%463,645
40-4410.22.7%106,231
45-490.70.2%7,368
50-540.00.0%141