Percentage of Premature Babies

Updated February 23, 2017 | Factmonster Staff

The Question:

What percentage of live births yearly in the United States are premature?

The Answer:

Of the 4.2 million babies born in the United States in 2008, 12.3% were premature. (A baby born at 37 weeks is considered premature. Normal gestation is 39 weeks.)

Blacks have a higher rate of premature births than the general population; the premature-birth rate for non-Hispanic Blacks in 2008 was 17.5% of all births.

For more information, check out more of our birth statistics and other U.S. Statistics.

-The Fact Monster

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