A crowded transit platform beside dense apartment blocks at rush hour.

The Crisis

Population & demographics

People still concentrate in cities even as global population growth slows. Housing need is local even when the world is 8.2 billion.

UN World Population Prospects 2024 puts world population at 8.2 billion in 2024. World Bank urban-population data, based on UN World Urbanization Prospects, puts the urban share at 57.7%. National definitions of “urban” differ, so that share is not a single street-level density.

A slower-growing world can still have ferocious local housing shortages. Households form where work, safety, and services are. If those places refuse growth, people overcrowd, commute farther, or bid against each other.

City-level demographic dossiers will be added with census sources, not by scraping thin pages. Until a city has a sourced population series, this publication will not invent one.

Sourced figures

Each figure carries a geography, period, and named source. None of these is a global median home price.

DATA

Urban population

57.7%

share of world population

Geography
World
Period
2024

World Bank WDI SP.URB.TOTL.IN.ZS, based on UN World Urbanization Prospects. National definitions of urban areas differ.

DATA

People lacking adequate housing

2.8 billion

people

Geography
World
Period
2024

UN-Habitat 2024 Annual Report. 'Adequate housing' is a rights-based concept, not a single dwelling-unit count. Earlier UN-Habitat papers have used a range of 1.6–3 billion.

Around the world