US Fertility Rates Plummet to Historic Lows as CBO Projects Continued Population Aging and Slower Growth

American fertility rates have experienced a dramatic downward spiral over the past two decades, dropping by nearly a quarter and triggering long-term demographic shifts that are reshaping the nation’s future. According to comprehensive new figures from the federal government, the declining birth rates among US women are altering the composition of American families, with foreign-born mothers now accounting for roughly one in every four births nationwide.

The total fertility rate in the United States is currently projected to fall to 1.58 births per woman by 2025. This represents a steep decline from 2.12 births per woman recorded in 2007. The year 2007, which preceded the onset of the Great Recession, stands out as the final milestone period in which US fertility rates remained above the critical threshold of 2.1 births per woman—the standard benchmark required for a population to maintain natural replacement levels without relying on external migration. Measured against that benchmark year, the subsequent drop of 25.5% highlights an accelerating demographic trend that economists, policy analysts, and healthcare systems are increasingly forced to confront.

Recent data compiled by the Congressional Budget Office illustrates how shifting demographics intersect with immigration trends. Foreign-born mothers now represent approximately 22% to 25% of all births in the United States, translating to roughly 800,000 to 900,000 children born annually to immigrant families. Statistical comparisons indicate that foreign-born women maintain a higher overall fertility rate than their US-born counterparts, registering 1.79 births per woman compared to the 1.53 births recorded among US-born women.

Despite this notable disparity, both groups currently fall well short of the long-term replacement rate required for generational stability. Furthermore, government projections suggest that the fertility rate among foreign-born women is set to experience a sharper relative decline in the coming decades compared to US-born women. Long-term forecasting models spanning from 2026 to 2056 indicate that the total US fertility rate will experience a modest additional decrease, shifting from 1.58 down to 1.53 births per woman—a total reduction of 3.2%. Among US-born women, the fertility rate is expected to experience a more gradual shift, moving from 1.53 down to 1.50 births per woman, which represents a relatively stable 2% decline over a thirty-year horizon.

In contrast, the fertility rate among foreign-born women is projected to drop more significantly. Government forecasts estimate that the foreign-born fertility rate will decline from 1.79 down to 1.66 births per woman by the year 2056, marking a 7.3% decrease. This convergence points toward a broader, nationwide stabilization of lower birth rates across nearly all demographic segments over the course of the twenty-first century.

The compounding effects of these shifting trends point toward a distinctly older America. Demographic projections indicate that the annual number of deaths nationwide is on a trajectory to exceed the annual number of births as early as 2030. This crossover point marks a critical juncture for the country. Without the sustained contributions of immigration, America’s overall population would begin a period of continuous contraction within just four years of that milestone.

The broader economic and social implications of this slowdown are already drawing close scrutiny from researchers and policymakers. The Congressional Budget Office report indicates that overall US population growth is poised to decelerate significantly over the next three decades. Annual population growth rates, which are projected to average roughly 0.3% per year over the coming decade, are expected to slow even further to an average of just 0.1% per year between 2037 and 2056.

These sustained low growth trajectories suggest that even when factoring in projected levels of net immigration, the United States population may enter a phase of absolute shrinkage during the second half of the twenty-first century. As the demographic landscape evolves, the intersection of declining birth rates, an aging citizenry, and the vital role of foreign-born families will remain central to discussions regarding the nation’s economic vitality, workforce stability, and public infrastructure.