Births are shown by age and race and Hispanic origin of mother. Data on marital status, cesarean delivery, preterm births, and low birthweight.
- The 2015 preliminary number of U.S. births was 3,977,745, down slightly (less than 1%) from 2014.
- For the three largest race and Hispanic origin groups in the United States, the number of births decreased for non-Hispanic white women, increased for Hispanic women, and were essentially unchanged for non-Hispanic black women in 2015.
- The general fertility rate was 62.5 births per 1,000 women aged 15–44, down less than 1% from 2014.
- The birth rate for teenagers aged 15–19 decreased 8% in 2015 to 22.3 births per 1,000 women, another historic low for the country; rates decreased for both younger and older teenagers to record lows.
- The birth rate for women in their early 20s declined to 76.9 births per 1,000 women, another record low.
- The rate for women in their late 20s declined as well, to 104.3 births, also a record low.
- Birth rates for women in their 30s and early40s increased in 2015.The nonmarital birthrate declined 1% in 2015, to 43.5 births per 1,000 unmarried women aged 15–44.
- The cesarean delivery rate declined for the third year in a row to 32.0%, and the low-risk cesarean delivery rate declined again to 25.7% in 2015.
- The preterm birth rate (based on obstetric estimate of gestation) was up slightly in 2015 to 9.62%, the first increase in this rate since 2007.
- The low birthweight rate was also up in 2015 to 8.07%.