Introduction

Humanity is undergoing one of the most profound demographic transformations in modern history. Over the past six decades, fertility rates have fallen dramatically across much of the world, reshaping population structures and raising important economic and social concerns. Many countries are now experiencing ageing populations, declining birth rates, shrinking workforces, and increasing pressure on healthcare, pension, and social support systems. At the same time, some developing regions continue to maintain relatively high fertility rates, highlighting significant differences in demographic development across countries and continents.

Understanding these changing fertility patterns is critical because population dynamics influence economic growth, labour market sustainability, urban development, public policy, and long-term national prosperity. As governments seek to address the challenges associated with population ageing and declining birth rates, data-driven insights into demographic trends have become increasingly important.

This project explores global fertility trends between 1960 and 2024 using data sourced from the World Bank’s World Development Indicators database. By combining fertility rates with indicators such as GDP per capita, female labour force participation, and the proportion of the population aged 65 and above, the analysis examines how economic development, workforce participation, and population ageing are associated with changes in fertility behaviour over time.

Through a series of interactive visualisations, this report investigates the geographical distribution of fertility rates, long-term demographic transitions, regional differences across continents, and the demographic risks faced by countries with persistently low birth rates and ageing populations. The findings provide valuable insights into one of the most significant global challenges of the twenty-first century and highlight the complex relationship between economic progress and demographic change.

Chart 1: Humanity’s Fertility Collapse

The global fertility rate has declined dramatically over the past six decades, reflecting one of the most significant demographic shifts in modern history. In the early 1960s, the average woman worldwide gave birth to more than five children. By 2024, that figure had fallen to approximately 2.4 births per woman, bringing the global average close to the replacement level of 2.1 births per woman required to maintain a stable population without migration. This decline has been driven by a combination of factors, including economic development, increased urbanisation, improved access to education, greater participation of women in the workforce, and changing social attitudes towards family size. As fertility rates continue to fall in many countries, governments and policymakers are increasingly concerned about the long-term implications for labour markets, economic growth, and population ageing.

Data Quality Assessment

Summary of Final Analytical Dataset
Metric Value
Observations 16283
Countries/Territories 251
Years Covered 1960-2024
Variables 4

Chart 2: The World Is Running Out of Babies

Fertility decline has not occurred uniformly across the world. While many developed economies have experienced sustained declines in birth rates and now sit well below the replacement level of 2.1 births per woman, several developing nations continue to record relatively high fertility rates. These differences reflect variations in economic development, education levels, healthcare access, cultural norms, urbanisation, and government policies. As a result, countries are progressing through demographic transitions at different speeds, creating a diverse global fertility landscape. Understanding these regional differences is essential for identifying which nations are facing population ageing and workforce challenges, and which continue to experience rapid population growth.

How to read this chart:

Hover over any country to view additional demographic and economic information.

Countries such as South Korea, Japan, Italy and Spain now exhibit fertility rates well below the replacement level of 2.1 births per woman. In contrast, many countries across Sub-Saharan Africa continue to record fertility rates above four births per woman, highlighting the uneven pace of demographic transition across the world.

Chart 3: Who Stopped Having Babies the Fastest?

Not all countries have experienced fertility decline at the same pace. While some nations have seen gradual reductions in birth rates over several decades, others have undergone profound demographic transformations within a single generation. Rapid economic development, urbanisation, improvements in education, greater workforce participation among women, and changing social norms have accelerated fertility decline in many parts of the world. This visualisation compares fertility rates in 1960 and 2024 for the countries that experienced the largest declines, highlighting the scale of demographic change and illustrating how dramatically family structures and population growth patterns have evolved over time.

Countries such as Iran, Kuwait, Bahrain and the United Arab Emirates have experienced some of the most dramatic fertility declines observed globally. These changes highlight how rapidly demographic transitions can occur when economic development, urbanisation, education and social change accelerate simultaneously.

Chart 4: Explore Fertility by Continent

This interactive treemap provides a continent-by-continent view of global fertility patterns in 2024, allowing users to explore how birth rates vary across different regions of the world. By using the dropdown menu, users can switch between continents and examine the demographic characteristics of individual countries. The visualisation highlights the substantial variation that exists both within and between continents, demonstrating that fertility trends are influenced by a complex combination of economic, social, cultural, and demographic factors. Hovering over each country reveals additional information, enabling a deeper exploration of fertility rates alongside broader economic and population indicators. How to read this chart:

Hover over any country to view detailed demographic and economic information.

The treemap reveals substantial variation in fertility patterns across continents and countries. While many African nations continue to record relatively high fertility rates, countries across Europe and East Asia generally exhibit much lower fertility levels. Economic prosperity alone does not fully explain fertility behaviour, highlighting the complexity of demographic change.

Chart 5: The Demographic Danger Zone

Declining fertility is not necessarily a concern on its own and can often reflect positive social and economic developments such as improved education, healthcare, and greater opportunities for women. However, when persistently low fertility rates are combined with an ageing population, countries may face significant demographic and economic challenges. These can include shrinking workforces, increased pressure on pension and healthcare systems, slower economic growth, and difficulties sustaining long-term productivity. This visualisation identifies which countries are entering the demographic danger zone by examining the relationship between fertility rates and population ageing, highlighting those that may face the greatest demographic pressures in the decades ahead.

Countries located in the lower-right quadrant combine two major demographic challenges: low fertility and high population ageing. Nations such as Japan, South Korea, Italy and Germany are already experiencing shrinking workforces and increasing dependency ratios. In contrast, many African economies remain in the younger and faster-growing stage of demographic transition, highlighting the stark demographic divide emerging across the world. ## Key Findings

Conclusion

The analysis reveals a significant and sustained decline in fertility rates across much of the world over the last six decades, highlighting one of the most important demographic shifts of the modern era. While fertility rates remain relatively high in some developing regions, many advanced economies have fallen well below the replacement level of 2.1 births per woman, raising concerns about long-term population sustainability.

The interactive visualisations demonstrate that fertility trends are closely linked to broader socioeconomic factors, including economic development, female labour force participation, and population ageing. Countries with higher levels of economic development and older population structures generally tend to exhibit lower fertility rates, although the relationship varies across regions and stages of demographic transition.

These findings underscore the growing challenges faced by governments and policymakers as they seek to balance economic growth, workforce sustainability, healthcare demands, and social welfare obligations in ageing societies. Understanding the drivers and consequences of declining fertility is essential for developing effective policies that support both population wellbeing and long-term economic resilience. As demographic patterns continue to evolve, data-driven analysis will remain critical in helping societies prepare for the opportunities and challenges of the twenty-first century. Ultimately, fertility decline is not simply a demographic issue but an economic and societal challenge that will shape labour markets, public policy, and economic development throughout the twenty-first century.

References

The World Bank. (2026a). Fertility rate, total (births per woman) (SP.DYN.TFRT.IN). World Development Indicators. https://data.worldbank.org/indicator/SP.DYN.TFRT.IN

The World Bank. (2026b). GDP per capita (current US$) (NY.GDP.PCAP.CD). World Development Indicators. https://data.worldbank.org/indicator/NY.GDP.PCAP.CD

The World Bank. (2026c). Labour force participation rate, female (% of female population ages 15+) (modeled ILO estimate) (SL.TLF.CACT.FE.ZS). World Development Indicators. https://data.worldbank.org/indicator/SL.TLF.CACT.FE.ZS

The World Bank. (2026d). Population ages 65 and above (% of total population) (SP.POP.65UP.TO.ZS). World Development Indicators. https://data.worldbank.org/indicator/SP.POP.65UP.TO.ZS

World Bank Group. (2026). World Development Indicators. https://databank.worldbank.org/source/world-development-indicators