A recent study suggests that homeownership played a significant role in America's post-World War II baby boom, offering new insights into the relationship between personal finances and fertility rates. Economists Melissa S. Kearney of the University of Notre Dame and Lisa J. Dettling of the Federal Reserve Board analyzed government-backed mortgage programs, particularly those implemented under the G.I. Bill, and found that increased access to homeownership was linked to a notable rise in birth rates during the mid-20th century.

The researchers examined data from the postwar era when the total fertility rate surged by approximately 30 percent, reaching around 3.7 children per woman by 1957. This period coincided with a dramatic expansion of homeownership among Americans of childbearing age, which rose from 20 percent in 1940 to 50 percent by 1960. The G.I. Bill’s mortgage provisions allowed returning veterans to purchase homes with minimal or no down payments, helping to establish financial stability and build the American middle class.

To assess the connection between these mortgage programs and fertility, Kearney and Dettling accessed thousands of pages of digitized mortgage records from the Federal Reserve, linking them with demographic data from individual states. Their analysis revealed that for every 1,000 new government-backed mortgages issued, there were about 300 additional births in the following year. The findings suggest that homeownership provided emotional and financial security, encouraging younger families to marry earlier and have more children.

While the home mortgage programs were not originally designed as pronatalist policies, their impact on birth rates was significant. The study’s authors noted that the effect was related not to housing costs but to the sense of stability that owning a home imparts. However, the increase in births was not uniform across all groups. For example, Black women, who were largely excluded from the benefits of the postwar mortgage program due to discriminatory practices, also experienced increased childbearing during the period, indicating other factors were also at play.

Experts unaffiliated with the study described the methodology as robust, though they cautioned against directly applying historical results to current conditions. Phillip Levine, an economist at Wellesley College, acknowledged the strong empirical evidence but noted the contemporary housing market differs markedly from the mid-20th century.

Today, housing affordability remains a critical issue, with the median age of first-time homebuyers rising to 40 in 2025 and mortgage rates reaching 7 percent—levels not seen since early 2025. While the findings suggest that policies facilitating homeownership might encourage higher birth rates, Kearney emphasized the challenge posed by today’s limited housing supply, which could drive up prices rather than ease access. Policymakers face the complex task of balancing efforts to support family formation with the realities of a constrained housing market.