US Birth Rate Just Hit a Historic Low
The US fertility rate continued its decline to historic lows in 2025, driven by two converging trends: teen pregnancy rates have plummeted, and more women are delaying motherhood into their 30s and 40s.
The teen birth rate sat at 11.7 births per 1,000 females aged 15-19 — a number that would have been unimaginable a generation ago when it was around 60. That’s a genuine public health success, attributable to better access to contraception and shifting norms.
The broader fertility story is more complex. Women delaying childbirth reflects economic pressure, changing career structures, housing costs, and evolving expectations about partnership and parenthood. It’s not a single cause — it’s a structural shift.
The downstream effects take decades to fully land. Labor force contraction, pension system strain, and changing consumer markets all follow from fewer births. Countries like Japan and South Korea are already living that future. The US has been cushioned by immigration, but that cushion has been deliberate policy and it’s currently under political pressure.
What the data describes isn’t a crisis yet. It’s a trajectory.