The Centers for Disease Control's National Center for Health Statistics released provisional 2025 fertility data on April 9. The general fertility rate fell to 53.1 births per 1,000 women of reproductive age — ages 15 to 44. [1] It is the lowest figure in the CDC's seven-decade continuous series. The total fertility rate, estimating the number of children the average woman will bear in her lifetime, was roughly 1.6 — well below the 2.1 replacement threshold. [2]

The shape of the decline is the paper's interest. A one-year drop, in isolation, is noise. A two-decade slide, driven principally by a generational collapse in teenage births, is a different phenomenon. Arriving two weeks after Easter and in the middle of a week dominated by the war, it deserves the kind of attention a demographic story rarely gets.

The teenage birth rate has now fallen 81 percent since 1991. The 15-to-17 rate dropped 11 percent in 2025 alone. The 18-to-19 rate dropped 7 percent. [3] This is a public-health success measured in millions of pregnancies that did not happen to people who were not ready. The Guttmacher Institute's long-series data attribute the decline to contraceptive access, sex education, and a broad cultural shift that has, in one generation, normalized delay. [4] The teenage-births collapse is unambiguously good news.

The other component is older. Women aged 30 to 34 now represent the peak childbearing cohort for the first time in the CDC's history. The 35-to-39 rate has risen, slightly, each of the last five years. The 25-to-29 rate has fallen. The composite picture is of women who do not have a first child until their early thirties, have fewer children total, and have them later. Median maternal age at first birth is now 27.5, [5] up roughly half a year per decade since the 1980s.

Joan Didion's method, if she had been reading the table, would have been to set the demographic summary next to one other thing. The other thing the paper sets beside it is the Washington University in St. Louis loneliness study, published March 6, which found that roughly one in two adults aged 18 to 24 in the United States reported regular loneliness. [6] Youth loneliness has risen measurably since 2019 in every country studied and has not returned to pre-pandemic levels in any of them.

A decline in fertility does not reduce to a decline in partnership. But the loneliness measurement is, among other things, a measurement of partnership formation. Young adults who are not partnered do not produce births; young adults who partner later have fewer children when they do. The mechanism by which the fertility rate falls is also the mechanism by which young people meet each other and decide whether to share lives.

A society that has succeeded in reducing teenage pregnancy has also constructed an adulthood in which partnership arrives late, lasts less reliably, and produces fewer children when it arrives. That is not a moral failing. It is an emergent consequence of housing costs, student debt, two-earner expectations, the extension of formal education into the late twenties, and the documented rise in youth loneliness.

Whether the country receives the 1.6 number as good news or as a warning depends on whether it believes the lives the number is measuring are the lives those people wished to be living. The number is accurate. The story, as stories go, is less settled.

-- MAYA CALLOWAY, New York