Births to unmarried mothers declined slightly in 2013 from 41 percent to 40 percent, according to National Center for Health Statistics data, reports Pew. Unwed births declined for all racial groups and for Latinos.
However, the share of children born to unmarried mothers has more than doubled since 1980, when 18 percent of babies were born out of wedlock.
Births to younger women are down and births to older women are up. Most young mothers are unwed. By the late 20s, the majority of new mothers are married.
Women are staying in school longer to gain more education, notes Pew. Forty-three percent of births are to women 30 and older, up from 36 percent in 2000.
Meanwhile, the teen birth rate has declined sharply.
Overall, the U.S. birth rate rose in 2014 for the first time in seven years.