General

Syed Raheel Shahzad on Africa’s Urbanization Wave

The fastest urban growth in human history is happening now, and most of the infrastructure to absorb it doesn’t exist yet.

By the numbers alone, Africa’s urbanization wave is the largest movement of people into cities that has ever occurred on Earth. Lagos, Kinshasa, Dar es Salaam, and dozens of secondary cities across the continent are adding population at rates that dwarf the urbanization surges of 20th-century Europe or East Asia — not because those earlier waves were small, but because the base population driving Africa’s version is simply larger, and still growing, in a way no previous urban transition had to contend with.

Kinshasa alone is projected to become one of the largest cities on the planet within the next two decades, joining Lagos as an African megacity operating at a scale that most urban planning frameworks, built for a different era and a different pace of growth, were never designed to accommodate.

Why This Wave Moves Faster Than the Ones Before It

Historical urbanization, in Europe and later in East Asia, was substantially driven by industrialization — people moved to cities because factories were being built there and needed workers. Africa’s urban migration is following a different, more complicated logic. People are moving to cities in large numbers even in places where formal manufacturing employment hasn’t scaled to match, drawn instead by the informal economy, better access to services, and the simple fact that opportunity, even informal and unstable opportunity, is more concentrated in urban areas than in the rural alternative.

This distinction matters enormously for how the wave should be planned for. A city absorbing workers for factory jobs has a relatively predictable employment and housing demand curve to plan infrastructure around. A city absorbing population faster than formal employment is growing has a much harder planning problem — it has to build housing, water, sanitation, and transit capacity for people whose economic activity is often invisible to the formal planning and tax systems that would normally fund that infrastructure.

A city growing faster than its infrastructure isn’t failing by definition. It’s racing — and the outcome depends entirely on whether the infrastructure eventually catches up before the gap becomes permanent.

Where the Gap Is Being Closed, and Where It Isn’t

The cities managing this transition most successfully share a specific pattern: they’ve stopped treating informal settlements as a temporary problem to be cleared and started treating them as the actual urban fabric that needs formal infrastructure extended into it — water and power connections, formalized land tenure, and transit routes designed around where people already live rather than where planners wish they lived instead. Kigali’s approach to structured urban planning, even with its own real limitations, has become a frequently cited reference point precisely because it treated rapid growth as something to be actively managed rather than something to react to after the fact.

Cities that have struggled most tend to share the opposite pattern — treating informal urban growth as illegitimate, under-investing in the infrastructure that would formalize it, and then facing compounding service gaps that become progressively harder and more expensive to close the longer they’re left unaddressed. The lesson from a decade of comparison across the continent’s fastest-growing cities is fairly consistent: waiting for population growth to slow down before investing in infrastructure is a plan that has never once worked.

The Economic Stakes Behind the Planning Question

This isn’t purely a quality-of-life question. Cities that successfully absorb rapid population growth become genuine economic engines — concentrating talent, capital, and market demand in ways that drive productivity gains no rural economy can replicate at the same scale. Cities that fail to absorb that growth become the opposite: concentrations of underemployment and strained services that drag on national economic performance rather than lifting it.

Africa’s urbanization wave is not a distant forecast. It is happening now, in real time, faster than most infrastructure planning cycles can keep pace with. The cities that treat this as an active planning challenge rather than a demographic inevitability to simply absorb are the ones most likely to convert this wave into the same kind of economic engine that urbanization became for every region that successfully managed it before.