By Deidre McPhillips, Alicia Wallace, Tami Luhby, CNN
(CNN) — The fertility rate in the United States has been trending down for decades, and new federal data shows that another drop last year brought the rate down to the lowest on record.
About 3.6 million babies were born in the US in 2025, according to provisional data published Thursday by the US Centers for Disease Control and Prevention, about 53 births for every 1,000 women of reproductive age. That rate is down about 1% from 2024 and nearly 20% lower than it was two decades ago.
A pronatalist movement has gained momentum under the Trump administration, buoyed by policy moves geared toward encouraging people to have more children.
Experts generally agree that a falling fertility rate can have real consequences – particularly related to the economy – but say it’s important to understand the reasons behind the decline before trying to change it.
“Instead of targeting the rate itself, we should frame it as a person-forward approach,” said Dr. Alison Gemmill, an associate professor of epidemiology at the UCLA School of Public Health whose research focuses on US fertility patterns and other reproductive health topics.
“Our world and our lives are complex,” she said. “There are so many factors that people consider when making decisions about how and when to start a family, and they all matter.”
Overall, women in the US are waiting until later in life to have children. Between 2024 and 2025, birth rates ticked up among women 30 and older but not enough to offset sharper declines in birth rates among those younger than 30.
This is part of a “huge social change,” Gemmill said.
“Women now have better control over their reproductive lives, so there’s not as much unintended pregnancy as there used to be,” she said. “Our timelines have shifted.”
Pregnancy is also one of many life milestones that is happening later than it used to. Partnership patterns are important, Gemmill said, and people in the US are getting married later and less often than they used to.
Dr. Sigal Klipstein, a specialist in reproductive endocrinology and infertility at InVia Fertility Specialists in Chicago, says that having the right partner is one of most important considerations for her patients.
“It’s very uncommon that women say, ‘I’m a really busy professional and I just don’t have time to have babies, so I want to freeze my eggs so I can focus on my career,’” said Kipstein, who is also a former chair of the American College of Obstetricians & Gynecologists committee on ethics.
“The largest group is women who said they haven’t found the appropriate partner and don’t want to have children alone,” she said. “It’s very much that they want children, but that they want them either in the context of a family or in a context of financial security, and they’re willing to wait in the hopes that they not need to compromise.”
The general state of the world has also made people more deliberate about their decision to have children, Gemmill said. Concerns about climate change, the economy, artificial intelligence, health care quality and more weigh heavily on future parents.
“All of these things are hard to quantify,” Gemmill said. “The highly competitive and inequitable world that we live in has made many future parents feel that they need to give more, that parenting requires a lot more of your time and money than 20 years ago.”
An economic ‘drag’
A further slowdown in the US birth rate eventually could serve as a potential drag on economic growth, said Samuel Tombs, chief US economist at Panthe