That puts the U.S. right between Belarus and the Czech Republic. Norway is No. 1, just ahead of Iceland and Sweden.
The report's ranking of 165 nations factors in measures of education, health and economic status as well as the health and nutrition of children.
"There's still an awful lot that we need to do," said Carolyn Miles, the president of Save The Children.
The U.S. has made strides with respect to better care for teen moms and also in electing more women to government positions, which the organization sees as an important measure of how society values women.
But it has to do more, Miles and others stress.
"We valorize parenthood and in particular, motherhood, while at the same time we offer very few supports," said Robin Simon, a professor of sociology at Wake Forest University.
So while the U.S. recognizes mothers for their incredibly important role as the primary caregivers to children, it still hasn't done enough to help raise the kids.
It's no secret: Raising a child is stressful and really expensive. A new mother needs a lot of help, Simon said, and other countries provide more government assistance than the United States does.
"Unlike other industrialized nations, we lack the kind of state-level protections and policies that would reduce some of that stress," she said, speaking of "family-friendly entitlement programs" like universal health care.
Image: Mother and child, via Shutterstock.