Women Over 40 Just Out-Birthed Teens in America
One stat, two stories.
A line is going around: “Women over 40 just surpassed teen girls in birth rates for the first time in U.S. history.”
Dramatic. Made for engagement. And true-ish.
But like most viral stats, the second look is quite interesting.
Numbers
The National Center for Health Statistics, part of the CDC, put it in a report from spring 2025. The data is from 2023.
So, it’s not actually that new. But the clickbaity headlines are.
Women over 40 had 4.1% of US births that year. Teens had 4.0%.
That’s it. Hair-thin.
Modern US birth records go back to 1933. Teens sat above the 40+ group the whole time. Often by a lot.
The crossing already happened back in 2022. The gap has widened a bit since. The 2025 CDC report made it more visible.
Teen births
Down 78% since 1990. From 59.9 per 1,000 to 13.1. I think, all in all, that it’s not really a bad thing. Most would agree here, I assume.
It’s not “by accident”, obviously.
It’s decades of public health work.
Long-acting birth control like IUDs and implants went from rare to routine.
Sex ed got better. Teens started later. The share of sexually active teen girls dropped from 51% in 1988 to 42% by 2017.
“It tells me a range of strategies is paying off,” said Dr. Claire Brindis at UCSF. Sounds about right.
Older moms
Births to women over 40 jumped 193% since 1990. Births to women 35 to 39 jumped 90%. Those are incredible increases. But not even the striking. That is: Births to women 45 and over went up 450%.
But it also involves some nuance, because that number wouldn’t and doesn’t exist, the 450% increase we’re looking at, without IVF.
Other seasons stack up, too, though. Careers. Money. Education. Reproductive medicine that didn’t exist a generation ago.
Missing pieces
Older births don’t replace the missing younger ones. At least in statistics on paper.
US total fertility sits around 1.6. Replacement is 2.1.
Total US births fell 14% between 1990 and 2023. The “older mom” share is growing inside a shrinking pie.
Two stories
Teen pregnancy prevention worked. People are having kids later.
And the third story is that there’s falling fertility overall.
Also, health officials still warn about the medical part. Pregnancies after 35 carry higher risk. Chromosomal issues, complications. That hasn’t changed. Yet.
Teen pregnancy is down, and that’s good.
People are having kids later. That’s life now.
Well, the picture would also look quite different if official (and believable) data existed from before 1933. Way back. That would tell a totally different story, I imagine.