Nigeria is the African country with the largest population, counting over 230 million people. As of 2024, the largest city in Nigeria was Lagos, which is also the largest city in sub-Saharan Africa in terms of population size. The city counts more than nine million inhabitants, whereas Kano, the second most populous city, registers around 3.6 million inhabitants. Lagos is the main financial, cultural, and educational center in the country. Where Africa’s urban population is booming The metropolitan area of Lagos is also among the largest urban agglomerations in the world. Besides Lagos, another most populated citiy in Africa is Cairo, in Egypt. However, Africa’s urban population is booming in other relatively smaller cities. For instance, the population of Bujumbura, in Burundi, could grow by 123 percent between 2020 and 2035, making it the fastest growing city in Africa and likely in the world. Similarly, Zinder, in Niger, could reach over one million inhabitants by 2035, the second fastest growing city. Demographic urban shift More than half of the world’s population lives in urban areas. In the next decades, this will increase, especially in Africa and Asia. In 2020, over 80 percent of the population in Northern America was living in urban areas, the highest share in the world. In Africa, the degree of urbanization was about 40 percent, the lowest among all continents. Meeting the needs of a fast-growing population can be a challenge, especially in low-income countries. Therefore, there will be a growing necessity to implement policies to sustainably improve people’s lives in rural and urban areas.

Population in largest city in Nigeria was reported at 16536018 in 2024, according to the World Bank collection of development indicators, compiled from officially recognized sources. Nigeria - Population in largest city - actual values, historical data, forecasts and projections were sourced from the World Bank on October of 2025.

Cairo, in Egypt, ranked as the most populated city in Africa as of 2025, with an estimated population of over 23 million inhabitants living in Greater Cairo. Kinshasa, in Congo, and Lagos, in Nigeria, followed with some 17.8 million and 17.2 million, respectively. Among the 15 largest cities in the continent, another one, Kano, was located in Nigeria, the most populous country in Africa. Population density trends in Africa As of 2023, Africa exhibited a population density of 50.1 individuals per square kilometer. Since 2000, the population density across the continent has been experiencing a consistent annual increment. Projections indicated that the average population residing within each square kilometer would rise to approximately 58.5 by the year 2030. Moreover, Mauritius stood out as the African nation with the most elevated population density, exceeding 627 individuals per square kilometre. Mauritius possesses one of the most compact territories on the continent, a factor that significantly influences its high population density. Urbanization dynamics in Africa The urbanization rate in Africa was anticipated to reach close to 45.5 percent in 2024. Urbanization across the continent has consistently risen since 2000, with urban areas accommodating only around a third of the total population then. This trajectory is projected to continue its rise in the years ahead. Nevertheless, the distribution between rural and urban populations shows remarkable diversity throughout the continent. In 2024, Gabon and Libya stood out as Africa’s most urbanized nations, each surpassing 80 percent urbanization. As of the same year, Africa's population was estimated to expand by 2.27 percent compared to the preceding year. Since 2000, the population growth rate across the continent has consistently exceeded 2.3 percent, reaching its pinnacle at 2.63 percent in 2013. Although the growth rate has experienced a deceleration, Africa's population will persistently grow significantly in the forthcoming years.

This statistic shows the biggest cities in Nigeria in 1991. In 1991, approximately *** million people lived in Lagos, making it the biggest city in Nigeria. According to the Lagos Bureau of Statistics, the 2011 population of Lagos State was **** million.

Population in the largest city (% of urban population) in Nigeria was reported at 12.91 % in 2024, according to the World Bank collection of development indicators, compiled from officially recognized sources. Nigeria - Population in the largest city - actual values, historical data, forecasts and projections were sourced from the World Bank on September of 2025.

Nigeria NG: Population in Largest City: as % of Urban Population data was reported at 13.798 % in 2017. This records a decrease from the previous number of 13.954 % for 2016. Nigeria NG: Population in Largest City: as % of Urban Population data is updated yearly, averaging 15.685 % from Dec 1960 (Median) to 2017, with 58 observations. The data reached an all-time high of 17.298 % in 1992 and a record low of 10.961 % in 1960. Nigeria NG: Population in Largest City: as % of Urban Population data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s Nigeria – Table NG.World Bank: Population and Urbanization Statistics. Population in largest city is the percentage of a country's urban population living in that country's largest metropolitan area.; ; United Nations, World Urbanization Prospects.; Weighted average;

Nigeria NG: Population in Largest City data was reported at 13,042,316.000 Person in 2017. This records an increase from the previous number of 12,634,381.000 Person for 2016. Nigeria NG: Population in Largest City data is updated yearly, averaging 4,345,582.000 Person from Dec 1960 (Median) to 2017, with 58 observations. The data reached an all-time high of 13,042,316.000 Person in 2017 and a record low of 762,418.000 Person in 1960. Nigeria NG: Population in Largest City data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s Nigeria – Table NG.World Bank.WDI: Population and Urbanization Statistics. Population in largest city is the urban population living in the country's largest metropolitan area.; ; United Nations, World Urbanization Prospects.; ;

In 2023, the best city for startups in Nigeria was Lagos, with a total score of ****, according to data provided by StartupBlink. Lagos ranked first in Africa and **** worldwide. Lagos is the largest city in Africa and represents an important financial hub for Nigeria as well as for the whole continent. Abuja and Ibadan were other ranking Nigerian cities.

As of July 2024, Nigeria's population was estimated at around 229.5 million. Between 1965 and 2024, the number of people living in Nigeria increased at an average rate of over two percent. In 2024, the population grew by 2.42 percent compared to the previous year. Nigeria is the most populous country in Africa. By extension, the African continent records the highest growth rate in the world. Africa's most populous country Nigeria was the most populous country in Africa as of 2023. As of 2022, Lagos held the distinction of being Nigeria's biggest urban center, a status it also retained as the largest city across all of sub-Saharan Africa. The city boasted an excess of 17.5 million residents. Notably, Lagos assumed the pivotal roles of the nation's primary financial hub, cultural epicenter, and educational nucleus. Furthermore, Lagos was one of the largest urban agglomerations in the world. Nigeria's youthful population In Nigeria, a significant 50 percent of the populace is under the age of 19. The most prominent age bracket is constituted by those up to four years old: comprising 8.3 percent of men and eight percent of women as of 2021. Nigeria boasts one of the world's most youthful populations. On a broader scale, both within Africa and internationally, Niger maintains the lowest median age record. Nigeria secures the 20th position in global rankings. Furthermore, the life expectancy in Nigeria is an average of 62 years old. However, this is different between men and women. The main causes of death have been neonatal disorders, malaria, and diarrheal diseases.

This horizontal bar chart displays female population (people) by capital city using the aggregation sum in Nigeria. The data is filtered where the date is 2021. The data is about countries per year.

Nigeria has the largest population in Africa. As of 2025, the country counted over 237.5 million individuals, whereas Ethiopia, which ranked second, has around 135.5 million inhabitants. Egypt registered the largest population in North Africa, reaching nearly 118.4 million people. In terms of inhabitants per square kilometer, Nigeria only ranked seventh, while Mauritius had the highest population density on the whole African continent in 2023. The fastest-growing world region Africa is the second most populous continent in the world, after Asia. Nevertheless, Africa records the highest growth rate worldwide, with figures rising by over two percent every year. In some countries, such as Chad, South Sudan, Somalia, and the Central African Republic, the population increase peaks at over 3.4 percent. With so many births, Africa is also the youngest continent in the world. However, this coincides with a low life expectancy. African cities on the rise The last decades have seen high urbanization rates in Asia, mainly in China and India. African cities are also growing at large rates. Indeed, the continent has three megacities and is expected to add four more by 2050. Furthermore, Africa's fastest-growing cities are forecast to be Bujumbura, in Burundi, and Zinder, Nigeria, by 2035.

This horizontal bar chart displays rural population (people) by capital city using the aggregation sum in Nigeria. The data is filtered where the date is 2021. The data is about countries per year.

This horizontal bar chart displays median age (year) by capital city using the aggregation average, weighted by population in Nigeria. The data is filtered where the date is 2021. The data is about countries per year.

This horizontal bar chart displays land area (km²) by capital city using the aggregation sum in Nigeria. The data is filtered where the date is 2021. The data is about countries per year.

This horizontal bar chart displays inflation (annual %) by capital city using the aggregation median in Nigeria. The data is filtered where the date is 2021. The data is about countries per year.

This horizontal bar chart displays LinkedIn followers (followers) by city using the aggregation sum in Nigeria. The data is about companies.

NG：最大城市人口占城市总人口的百分比在12-01-2017达13.798%，相较于12-01-2016的13.954%有所下降。NG：最大城市人口占城市总人口的百分比数据按年更新，12-01-1960至12-01-2017期间平均值为15.685%，共58份观测结果。该数据的历史最高值出现于12-01-1992，达17.298%，而历史最低值则出现于12-01-1960，为10.961%。CEIC提供的NG：最大城市人口占城市总人口的百分比数据处于定期更新的状态，数据来源于World Bank，数据归类于Global Database的尼日利亚 – 表 NG.世界银行：人口和城市化进程统计。

Abstract Growing-city pollution is seen as an inability of an existence infrastructural facilities to support the growing population of humans or other living species in that environment. Growing-city pollution amidst the world has become a topic of increased scholarly review. Yet, insignificant attention has been given to how rising city-pollution influences public health and standard of living. This paper examines the link between growing -city pollution and sanitation. Analysis uses cross-sectional data to examine this causality using an evidence of high populated cities in Southwest, Nigeria. About 6.2% uses modern toilet facilities and about 67% practises open defecation. Access to water/sanitation facilities, distance to nearest health clinic or hospital are the main features influencing multidimensional poor sanitation/hygiene index. Focus Group Discussions (FGDs) revealed that discussants lacked an understanding of the linkages between hygiene practices and water-related diseases. Growing-city pollution influences endemic chronic diseases because sanitation is poorly accessible. Interaction between sanitation and population density in predicting poor health outcomes as evidenced in this study. Efforts should be geared by all stakeholders to boost and create livelihoods activities that can curtail rural-urban drift. Rural migrants should be encourage to stay in their vicinity to enjoy less air-polluted environment and decent accommodation.

This horizontal bar chart displays environmental score (ESG) (/ 100) by city using the aggregation average in Nigeria. The data is about companies.

NG：最大城市人口在12-01-2017达13,042,316.000人，相较于12-01-2016的12,634,381.000人有所增长。NG：最大城市人口数据按年更新，12-01-1960至12-01-2017期间平均值为4,345,582.000人，共58份观测结果。该数据的历史最高值出现于12-01-2017，达13,042,316.000人，而历史最低值则出现于12-01-1960，为762,418.000人。CEIC提供的NG：最大城市人口数据处于定期更新的状态，数据来源于World Bank，数据归类于全球数据库的尼日利亚 – 表 NG.世行.WDI：人口和城市化进程统计。