Africa is experiencing one of the fastest urban transformations in the world. From the enormous metropolitan landscape of Cairo to the rapidly expanding cities of Lagos, Kinshasa and Dar es Salaam, millions of people are moving to urban areas in search of jobs, education and economic opportunities.
But what are the largest cities in Africa in 2026?
The answer is more complicated than simply looking at the population within official city boundaries. African cities use very different administrative definitions, meaning a municipality in one country cannot always be compared fairly with a municipality in another.
For this TopMost10 ranking, we therefore focus primarily on urban agglomeration population estimates—the continuous city and surrounding built-up urban area—using United Nations population data and projections as the principal reference.
Important: Population figures are rounded estimates. Different sources may produce different totals depending on whether they measure the city proper, metropolitan area or urban agglomeration.
How We Ranked the Largest Cities in Africa
The main reference for this ranking is the United Nations’ urban population data and projections.
The UN Population Division publishes the World Urbanization Prospects, one of the most authoritative international resources for comparing urban populations.
We use comparable urban-area estimates rather than mixing city-proper figures from one country with metropolitan figures from another.
The approximate 2026 ranking is:
- Cairo, Egypt
- Kinshasa, Democratic Republic of the Congo
- Lagos, Nigeria
- Luanda, Angola
- Dar es Salaam, Tanzania
- Johannesburg, South Africa
- Khartoum, Sudan
- Abidjan, Côte d’Ivoire
- Alexandria, Egypt
- Addis Ababa, Ethiopia
Because African cities are growing quickly and population datasets are periodically revised, exact positions—particularly toward the lower half of the top ten—can change between editions.
10. Addis Ababa, Ethiopia
Country: Ethiopia
Approximate urban population: More than 5 million
Known for: Government, diplomacy, aviation and business
Addis Ababa is Ethiopia’s capital and one of Africa’s most politically important cities.
Its importance extends well beyond Ethiopia because the city is home to the headquarters of the African Union.
It also hosts the United Nations Economic Commission for Africa and numerous embassies and international organizations.
Rapid population growth has expanded the city’s built-up area considerably, creating major demand for housing, roads, public transportation and other infrastructure.
The Addis Ababa Light Rail system was one response to increasing transportation demand, while large construction projects continue to reshape parts of the city.
Addis Ababa is also an important African aviation hub because Ethiopian Airlines operates its primary hub at Bole International Airport.
Learn more about the continental institution headquartered in the city through the African Union.
Why Addis Ababa Matters
- Capital of Ethiopia
- Headquarters of the African Union
- Major diplomatic center
- Important aviation hub
- Rapidly expanding urban population
9. Alexandria, Egypt
Country: Egypt
Approximate urban population: More than 5 million
Known for: Mediterranean port, history and industry
Alexandria is Egypt’s second-largest major urban center and one of the most historically important cities in the Mediterranean region.
Founded by Alexander the Great, ancient Alexandria became famous for institutions including the legendary Library of Alexandria and the Lighthouse of Alexandria.
Modern Alexandria remains economically important because of its location on Egypt’s Mediterranean coast.
The city is a major port and industrial center and plays an important role in trade, manufacturing and tourism.
Its coastal geography also creates long-term challenges connected to climate change, sea-level rise and population density.
Why Alexandria Matters
- Major Mediterranean port
- Egypt’s second-largest urban center
- Important industrial economy
- Extraordinary historical significance
- Major tourism destination
8. Abidjan, Côte d’Ivoire
Country: Côte d’Ivoire
Approximate urban population: Around 6 million or more
Known for: Finance, trade and West African business
Abidjan is the economic heart of Côte d’Ivoire and one of the largest French-speaking cities in Africa.
Although Yamoussoukro is the country’s official political capital, Abidjan remains its dominant commercial and financial center.
The city plays a major role in West African trade and finance and hosts regional offices of multinational companies and financial institutions.
Abidjan’s port is also central to Côte d’Ivoire’s international trade.
The city’s economic importance has contributed to sustained migration and rapid urban expansion.
Major infrastructure projects, including new roads and bridges, have attempted to improve mobility across the lagoon-dominated urban landscape.
Why Abidjan Matters
- Economic capital of Côte d’Ivoire
- Major West African financial center
- Important international port
- Large French-speaking population
- Rapid infrastructure development
7. Khartoum, Sudan
Country: Sudan
Historical urban population: Several million residents across the greater urban area
Known for: Confluence of the Blue and White Nile
Khartoum historically developed into one of northeastern Africa’s largest urban agglomerations, encompassing Khartoum, Omdurman and Khartoum North.
The city occupies a distinctive location near the meeting point of the Blue Nile and White Nile.
However, Khartoum requires an important qualification in any current population ranking.
Sudan’s war, which began in 2023, caused enormous population displacement and severely disrupted normal demographic patterns.
As a result, model-based population projections made before or during the conflict may not accurately describe the number of people physically living in Greater Khartoum in 2026.
For that reason, Khartoum’s position should be interpreted with substantially more caution than cities experiencing normal demographic conditions.
Current humanitarian information about Sudan is available through the United Nations Refugee Agency.
Why Khartoum’s Ranking Is Difficult
- Large historical metropolitan population
- Mass displacement caused by war
- Population estimates can lag real-world movement
- Greater Khartoum contains several major urban centers
6. Johannesburg, South Africa
Country: South Africa
Approximate wider urban population: More than 6 million, depending on boundary definition
Known for: Finance, mining history and corporate headquarters
Johannesburg is South Africa’s largest economic center and one of the continent’s most important business cities.
The city grew dramatically following the discovery of gold in the Witwatersrand during the late nineteenth century.
Today Johannesburg’s economy extends far beyond mining.
The wider Gauteng urban region is home to major banks, corporations, technology companies, retailers and professional-services firms.
Johannesburg also illustrates the difficulty of ranking African cities.
The official City of Johannesburg municipality is only one part of the much larger Gauteng urban system, which includes other densely populated municipalities and cities.
Comparing Johannesburg’s municipality directly with Lagos’s metropolitan region would therefore produce a misleading result.
Why Johannesburg Matters
- Major African financial center
- Large corporate economy
- Part of the enormous Gauteng urban region
- Important transportation hub
- Major cultural and media center
5. Dar es Salaam, Tanzania
Country: Tanzania
Approximate urban population: Around 8 million
Known for: Rapid growth, port activity and commerce
Dar es Salaam is one of the fastest-growing major cities in Africa.
Although Dodoma is Tanzania’s official capital, Dar es Salaam remains the country’s largest commercial city and one of East Africa’s most important economic centers.
The Port of Dar es Salaam gives the city strategic regional importance because it serves not only Tanzania but also trade routes connecting several landlocked countries to the Indian Ocean.
Population growth has transformed the city’s physical footprint.
New residential areas continue expanding outward while transportation infrastructure attempts to keep pace with increasing demand.
The Dar es Salaam Bus Rapid Transit system is one of the city’s major responses to urban congestion.
Why Dar es Salaam Is Growing So Fast
- Strong rural-to-urban migration
- Major Indian Ocean port
- Commercial opportunities
- Young national population
- Continued expansion of the built-up area
4. Luanda, Angola
Country: Angola
Approximate urban population: Around 10 million
Known for: Oil economy, port and rapid urbanization
Luanda dominates Angola’s urban and economic landscape.
The coastal capital expanded rapidly during and after Angola’s long civil war as people migrated toward the city.
Angola’s petroleum industry subsequently contributed to large-scale construction and investment, producing a skyline of modern office towers and residential developments alongside enormous densely populated neighborhoods.
This combination makes Luanda a city of striking contrasts.
It is simultaneously a center of oil wealth and a city facing major challenges involving housing, infrastructure, transportation, water and inequality.
Nevertheless, its population scale makes Luanda one of sub-Saharan Africa’s largest urban centers.
Why Luanda Matters
- Capital and largest city of Angola
- Center of the country’s petroleum economy
- Major Atlantic port
- Extremely rapid historical population growth
- One of Africa’s largest Portuguese-speaking cities
3. Lagos, Nigeria
Country: Nigeria
Approximate urban population: Well above 15 million
Known for: Business, entertainment, technology and enormous population
Lagos is one of the world’s most famous megacities and the economic powerhouse of Nigeria.
Although Abuja replaced Lagos as Nigeria’s political capital in 1991, Lagos remains the country’s dominant center for commerce, finance, technology, media and entertainment.
The metropolitan area includes densely populated districts across the mainland and islands, creating an enormous interconnected urban economy.
Lagos is also central to Africa’s entertainment boom.
Nigeria’s film industry and internationally successful music industry have strong connections to the city, while Lagos has become an important base for technology startups and venture investment.
Its huge population creates major opportunities but also serious infrastructure challenges, including congestion, housing shortages and pressure on public services.
The Lagos State Government provides information about infrastructure and development through its official website.
Why Lagos Is So Important
- Nigeria’s commercial capital
- One of Africa’s largest consumer markets
- Major technology startup ecosystem
- Center of Nigerian music and film
- Important port and financial center
2. Kinshasa, Democratic Republic of the Congo
Country: Democratic Republic of the Congo
Approximate urban population: Approaching or exceeding 20 million depending on dataset and definition
Known for: Rapid growth, culture and enormous population
Kinshasa has become one of the largest cities not only in Africa but in the world.
Located along the Congo River, the city faces Brazzaville, capital of the Republic of the Congo, on the opposite bank.
This makes Kinshasa and Brazzaville one of the world’s most remarkable pairs of neighboring national capitals.
Kinshasa’s growth has been extraordinary.
The Democratic Republic of the Congo has a young and rapidly growing population, and continued migration toward the capital has expanded the urban area dramatically.
The city is also one of the world’s most important centers of Francophone African culture.
Congolese music has influenced generations of African artists, while Kinshasa remains a major center for media, business and politics.
Why Kinshasa Is Growing Rapidly
- Very high national population growth
- Rural-to-urban migration
- Political and economic concentration
- Young population
- Continued outward urban expansion
Long-term population information for the Democratic Republic of the Congo can be explored through the World Bank’s DRC data portal.
1. Cairo, Egypt
Country: Egypt
Approximate urban population: More than 20 million
Known for: Government, finance, history, culture and the Nile
Cairo ranks as Africa’s largest or one of its two largest urban agglomerations in the major international population datasets used for cross-country comparisons.
The Egyptian capital sits along the Nile and forms the heart of an enormous metropolitan region that includes Giza and extensive surrounding urban development.
Greater Cairo’s population is far larger than the population contained within the administrative boundaries of Cairo Governorate alone.
This distinction explains why readers sometimes encounter dramatically different population figures for the city.
Cairo is Egypt’s political and economic center and one of the most influential cities in the Arab world and Africa.
The metropolitan region contains major universities, government institutions, corporate headquarters, media companies and cultural institutions.
The nearby Giza pyramid complex also makes Greater Cairo one of the world’s most recognizable tourism destinations.
Rapid growth has created significant challenges involving congestion, housing, pollution and infrastructure.
Egypt has responded partly by developing the New Administrative Capital east of Cairo, designed to accommodate government functions and new urban development.
Why Cairo Is Africa’s Urban Giant
- More than 20 million people in the wider urban agglomeration
- Egypt’s political and economic center
- Strategic location along the Nile
- Major tourism and cultural center
- One of the world’s largest metropolitan areas
Summary: Top 10 Largest Cities in Africa in 2026
| Rank | City | Country | Approximate Population |
|---|---|---|---|
| 1 | Cairo | Egypt | 20+ million |
| 2 | Kinshasa | DR Congo | Approaching/exceeding 20 million |
| 3 | Lagos | Nigeria | 15+ million |
| 4 | Luanda | Angola | Around 10 million |
| 5 | Dar es Salaam | Tanzania | Around 8 million |
| 6 | Johannesburg | South Africa | 6+ million |
| 7 | Khartoum* | Sudan | Highly uncertain due to war and displacement |
| 8 | Abidjan | Côte d’Ivoire | Around 6 million+ |
| 9 | Alexandria | Egypt | 5+ million |
| 10 | Addis Ababa | Ethiopia | 5+ million |
*Khartoum requires special caution because Sudan’s conflict has caused large-scale displacement, making normal model-based urban population projections less reliable.
Cairo vs. Lagos: Which City Is Bigger?
Cairo is generally larger when comparable urban-agglomeration definitions are used.
Confusion arises because estimates for Lagos vary enormously depending on the geographic boundary being measured.
Some figures refer to Lagos State, others to individual local government areas and others to the continuously built-up metropolitan area.
For international rankings, using the same demographic methodology across countries produces a more meaningful comparison.
Kinshasa Could Become One of the World’s Largest Cities
Kinshasa’s future growth is particularly remarkable.
The Democratic Republic of the Congo has one of the world’s fastest-growing large populations, and Kinshasa continues attracting migrants from other parts of the country.
United Nations projections indicate that Africa will account for a major share of worldwide urban population growth over the coming decades.
If current demographic trends continue, Kinshasa could eventually rank among the world’s largest urban agglomerations.
Why African Cities Are Growing So Quickly
Several forces are driving Africa’s urban population boom.
1. Population Growth
Africa has the world’s youngest continental population and many countries continue experiencing strong overall population growth.
2. Rural-to-Urban Migration
Millions of people move toward cities seeking employment, education, healthcare and other opportunities.
3. Natural Urban Population Growth
Cities can also grow because births exceed deaths among people already living there.
4. Expanding City Boundaries
As suburbs and informal settlements expand, previously separate communities can become physically connected to the main city.
What Is the Difference Between a City Proper and an Urban Agglomeration?
This distinction is essential when comparing city populations.
City proper generally refers to the population living within official administrative boundaries.
Urban agglomeration attempts to capture the larger continuous urban area, including suburbs and surrounding settlements closely connected to the core city.
Metropolitan area can be broader still, often including communities connected economically to the central city through commuting and employment.
Because administrative boundaries vary enormously between countries, TopMost10 prefers comparable urban-agglomeration figures for international city rankings.
Which African Country Has the Most Megacities?
Egypt and Nigeria contain some of Africa’s most important enormous urban centers, while the Democratic Republic of the Congo is experiencing particularly dramatic growth through Kinshasa.
Other countries—including Tanzania, Angola, Ethiopia and Côte d’Ivoire—also contain cities expanding at remarkable rates.
What Is a Megacity?
The United Nations generally uses the term megacity for an urban agglomeration with at least 10 million inhabitants.
By that definition, several African cities have already entered or are approaching megacity status.
The continent is expected to add more as urbanization continues.
Africa’s Urban Future
The growth of African cities creates enormous economic opportunities.
Large urban populations can support:
- Major consumer markets
- Technology ecosystems
- Manufacturing
- Financial services
- Entertainment industries
- Universities
- Transportation networks
- Entrepreneurship
But rapid urbanization also creates serious challenges.
Cities need sufficient housing, electricity, clean water, sanitation, schools, hospitals and transportation systems to support rapidly increasing populations.
How African governments manage this growth will help determine the continent’s economic future.
Frequently Asked Questions
What is the largest city in Africa in 2026?
Cairo is generally ranked as Africa’s largest urban agglomeration in major internationally comparable datasets, although Kinshasa is growing rapidly and the exact ordering can depend on the dataset and geographic definition used.
Is Lagos the largest city in Africa?
Lagos is one of Africa’s largest cities but is not necessarily No. 1 when standardized urban-agglomeration estimates are used. Very large figures sometimes quoted for Lagos may use broader geographical definitions.
Is Cairo bigger than Lagos?
Using comparable urban-agglomeration estimates, Greater Cairo is generally estimated to have a larger population than Lagos.
Is Kinshasa bigger than Lagos?
Recent international projections place Kinshasa ahead of Lagos under some standardized urban-agglomeration comparisons. Both cities are growing rapidly, so their population figures should always be accompanied by a year and methodology.
What is the largest city in West Africa?
Lagos, Nigeria, is generally regarded as West Africa’s largest urban agglomeration and is one of the continent’s most important economic centers.
What is the largest city in East Africa?
Dar es Salaam is among East Africa’s largest and fastest-growing urban agglomerations. Definitions can vary when comparing it with other major cities in the region.
What is the largest city in Southern Africa?
Johannesburg and the surrounding Gauteng urban region form Southern Africa’s largest concentration of urban population and economic activity.
What is the fastest-growing major city in Africa?
Several African cities are growing extremely quickly, including Dar es Salaam, Kinshasa and other urban centers in countries with young, rapidly increasing populations. Rankings vary according to the period and geographic definition used.
Explore More Africa Rankings
Discover more rankings about the continent in the TopMost10 Africa Rankings section.
You can also explore the Travel & Tourism section for destination rankings and travel guides.
For global geographical rankings and fascinating lists, visit the Facts, Lists & Rankings section.
Final Thoughts
Africa’s largest cities reveal the extraordinary scale of the continent’s demographic transformation.
Cairo remains an enormous urban center, while Kinshasa is growing at a pace that could eventually place it among the largest cities anywhere in the world.
Lagos continues to dominate West African business and entertainment, while Luanda, Dar es Salaam, Abidjan and Addis Ababa are expanding alongside their national economies and populations.
The most important story, however, is not simply which city occupies the No. 1 position in 2026.
It is the speed at which Africa is becoming increasingly urban.
Over the coming decades, the success of these cities in building housing, transportation, utilities and employment opportunities will have major consequences not only for Africa but for the global economy.