Latin American marriage and birth rates decline, official data show

Smaller families raise pressure on pensions and elder care systems

Psychologist Nibia Pizzo, writing in UPI’s “LATAM Perspectives” series, compiles official civil-registry data from Chile, Uruguay and Mexico and United Nations population estimates to document simultaneous declines in marriage and childbearing across Latin America, alongside rising divorce rates. In her commentary, Pizzo — the academic director of “Legacy of the Americas,” a project of the Global Peace Foundation — frames the combined shift as both a demographic and an institutional challenge for the region.

Pizzo’s piece cites three sets of national figures to illustrate the pattern. Chile’s civil registry recorded 64,285 marriages and 38,093 divorces in 2023, after the country’s marriage rate had already fallen from 4.4 per 1,000 inhabitants in 2000 to 1.9 in 2020. Uruguay, which Pizzo describes as “one of the region’s most secular societies and long home to liberal divorce law,” counted about 14,820 marriages and 5,210 divorces at the start of this century — figures that had fallen to roughly 8,100 marriages and 4,500 divorces by 2025, according to Uruguay’s civil registry.

Mexico’s national statistics agency, INEGI, tracked a parallel shift in the divorce-to-marriage ratio. In 2000, there were about 7.4 divorces for every 100 marriages registered that year; by 2024, the ratio had risen to approximately 33 per 100. Pizzo notes that divorces recorded in a given year are not necessarily dissolutions of marriages from that same year, so the comparison illustrates a real shift in the balance between marriage and marital dissolution rather than the share of marriages that ultimately end.

The commentary extends beyond marriage data to the region’s broader demographic trajectory. According to the Latin American and Caribbean Demographic Center — part of the U.N. Economic Commission for Latin America and the Caribbean — and the U.N. Population Division, the region’s annual population growth for 2023 to 2026 is only about 0.6% to 0.7%. Roughly 11.8 million to 12 million children were born annually in Latin America and the Caribbean in 2000; by 2025, that figure had fallen to about 9.1 million to 9.3 million.

Pizzo attributes the family-formation shift to several developments: greater educational and professional opportunities and economic independence for women; reduced stigma around divorce; and a preference among younger adults for cohabitation or civil unions over formal marriage. “The result is not that people value family less,” she writes. “The forms through which family life is organized are simply changing.”

The commentary ties the family-structure shift to a longer-run institutional challenge. Pizzo writes that “a country with fewer children today will eventually have fewer working-age adults supporting a larger elderly population, straining pensions, healthcare systems and public finances.” Smaller, more fragmented families, she adds, “may also be less able to provide the informal care once supplied by several generations living close together,” turning what she describes as “the weakening family network” into “an economic and institutional challenge as well as a cultural one.”

On divorce specifically, Pizzo acknowledges the complexity of the question. “For some couples and children, separation is preferable to remaining in a household marked by hostility or conflict,” she writes, adding that “no defense of the family should suggest that every marriage ought to continue regardless of circumstances.” She also notes that family breakdown “imposes real costs, including financial uncertainty, custody disputes and emotional instability for children adapting to divided households,” and that researchers have documented ties between unstable family environments and difficulties among young people — connections she ties to “poverty, education, neighborhood conditions and parental involvement” as much as to family structure itself.

In closing, Pizzo offers policy prescriptions. “Latin America cannot return to the family patterns of 1950, nor should it try,” she writes. “The task is to preserve what strong families have historically provided while recognizing the economic freedom, legal rights, and personal choices that define modern life.” She calls for policies that make family formation easier, including employment and housing prospects for young adults who want to marry and raise children, working conditions that allow parents to balance work with caregiving, and elder-care systems that complement rather than replace families.

Pizzo invokes a 1986 visit by Pope John Paul II to Perth, Australia, in which the pope told a crowd that “as the family goes, so goes the nation, and the world around it.” Four decades later, she writes, “in a region remaking its families faster than its institutions can adjust, the warning is worth revisiting.”

UPI’s commentary carries a disclaimer that “the views expressed are solely those of the author.”