The Next Phase of Global Urbanization: A Structural Reading of the UN's World Urbanization Prospects 2025

In 2025, the United Nations Population Division released the World Urbanization Prospects 2025: Summary of Results. Covering 237 countries and territories, with a time span from 1950 to 2050, the report offers a simple yet profound statistic: of the global population of 8.2 billion, 45 percent already live in cities. This proportion is more than double that of 1950.

For urban researchers, this figure is not just a statistical milestone; it represents a structural shift in the global spatial order. Cities are no longer the "special products" of the industrial age, but a new normal toward which human civilization is gradually turning. However, 45 percent also means that urbanization has only just passed the midway point—over the coming decades, cities will continue to absorb large numbers of people, especially in the Global South.

The Historical Shift of Urbanization's Center of Gravity

Since 1950, urbanization has expanded from the industrialized nations of Europe and America to vast regions across Asia and Africa. Unlike early industrial cities driven by capital, contemporary urbanization is fueled more by population growth, agricultural transformation, and the restructuring of global economic chains. Asia and Africa are experiencing the largest rural-to-urban migration in human history. This "compressed urbanization" requires cities to accomplish in decades what developed countries took over a century to build.

Although the UN report does not list country-level details in this summary, this geographic shift in gravity has long been evident in the global economic landscape. Cities in the Global South are becoming the new frontiers of infrastructure investment, manufacturing relocation, and digital innovation.

Urban Governance: From State-Centered to City-Centered

When 45 percent of the global population lives in cities, the governance capacity of local governments will directly determine the quality of life for the majority of people worldwide. Cities are gradually evolving from the endpoints of national policy implementation into true frontline actors addressing climate change, public health, migration integration, and international cooperation. Substantive collaboration through transnational city networks (such as C40 and UCLG) has already given cities an independent space for action in global governance.

This transformation calls for refined adjustments to traditional notions of national sovereignty. The relationship between states and cities is no longer simply hierarchical, but rather a "new distance" based on functional complementarity. Within the UN system, the weight of the urbanization agenda is also steadily increasing.

Toward 2050: Urban Strategy Needs a New Framework

World Urbanization Prospects 2025 offers a long-term perspective worth pondering. By 2050, the spatial landscape of urbanization will undergo further change. At the same time, climate change, AI technology, and social inequality will deeply reshape urban forms. The traditional "growth-first" development logic is becoming obsolete.

Cities need to establish new strategic frameworks to address the complex balance among density, ecology, digital governance, and inclusivity. From compact cities to resilient infrastructure, from data trust to just transition, urban policy must transcend short-term project thinking and return to long-termism.

One Report, One Lens on Civilization

UN urbanization data is, in a sense, a mirror of contemporary civilization. It reminds us: cities are not static statistical containers, but spaces where human cooperation and conflict coexist. 45% is only a starting point—the quality of future cities will determine the resilience of global civilization. Understanding urbanization is precisely understanding the historical turning point we ourselves occupy.

This matters more than the numbers themselves.