Births per 1,000 women, by age of mother

Fertility in United States of America, 2011

United States of America
2011
Total fertility rate: 1.88
Total fertility rate, 1950–2100 · click to pick a year

Year

-5 -1   2011  +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 1.88 children per woman in 2011 — 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 28.5 years old. In total, 3,942,528 babies were born. Source: United Nations, World Population Prospects 2024.

Total fertility rate
1.88
Births
3,942,528
Births per 1,000 people
12.6
Mean age of mothers
28.5
Births to mothers aged 15–19
8.3%
Net reproduction rate
0.90
Boys per 100 girls at birth
104.9
Population
314,105,078
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%4,979
15-1931.78.4%329,029
20-2484.922.6%926,255
25-29106.528.3%1,133,306
30-3495.825.4%984,875
35-3946.212.3%449,810
40-4410.32.7%106,737
45-490.70.2%7,404
50-540.00.0%134