The US fertility rate is projected to hit a historic low in 2025, with the total fertility rate falling to 1.57 births per woman, as economic uncertainty and social shifts continue to push women to delay childbirth.
"People are waiting for a better time to be a parent, until they feel more settled in their lives," said Wendy Manning, co-director of the National Center for Family & Marriage Research at Bowling Green State University. "There's a lot of anxiety about the future, their financial well-being, their relationship stability, and the political climate."
The decline is confirmed by the U.S. Centers for Disease Control and Prevention’s latest data, which shows the general fertility rate fell to 53.1 births per 1,000 women aged 15 to 44, the lowest on record. The data also highlights a 7 percent year-over-year drop in births to teenagers aged 15-19, continuing a multi-decade trend.
This demographic shift means the U.S. is rapidly approaching a point where population growth will depend entirely on immigration. The narrow surplus of births over deaths, which stood at about 500,000 in 2025, is projected by the U.S. Census Bureau to disappear within the next decade, posing long-term challenges to workforce supply and the sustainability of social security.
Delayed Childbirth Becomes the Norm
The core structural change driving the fertility decline is the consistent postponement of childbirth. In a historic shift, the birth rate for women in their late 30s surpassed the rate for women in their early 20s for the first time in 2025.
A significant factor in this trend is the sharp reduction in teen pregnancies. The birth rate for females aged 15 to 19 has plummeted by 72 percent since 2007. According to Karen Benjamin Guzzo, director of the Carolina Population Center at the University of North Carolina at Chapel Hill, this is largely the result of decades of public health advocacy and increased access to long-term contraception.
Immigration Becomes Sole Growth Driver
From a macroeconomic perspective, the foundation of U.S. population growth is becoming increasingly fragile. Projections from both the U.S. Census Bureau and the Congressional Budget Office indicate that the natural population increase will fall to zero within the next ten years.
Once natural growth disappears, net immigration will become the only source for maintaining population levels. This has profound implications for long-term economic potential, placing greater pressure on a shrinking labor force to support an aging population and sustain systems like Social Security and Medicare. While the U.S. fertility rate's decline is consistent with global trends, it still remains higher than that of many other developed nations.
This article is for informational purposes only and does not constitute investment advice.