Top Countries — Africa

DR Congo secures the second spot with 112.8 million residents spread across 2.34 million square kilometers—an area larger than any other country in Sub-Saharan Africa except #3 Ethiopia’s 1.1 million square km. Its population has doubled since 2000, fueled by a fertility rate of 5.9 births per woman, the highest among the top four African nations. This rapid growth, averaging 3.2% annually, means DR Congo adds 3.6 million people each year, outpacing #1 Nigeria’s absolute annual increase of 5.4 million in percentage terms. The country’s density, however, remains low at 48 people per square km, a stark contrast to Egypt’s concentrated 107.2 million along the Nile, highlighting distinct demographic pressures.

Ethiopia holds third place with 111.6 million inhabitants but is growing at 2.5% annually—a rate that positions it to overtake DR Congo’s 112.8 million within five years. Its population, projected to reach 130 million by 2032, is concentrated in highland areas, yet its urban share is just 21%, lower than any other top-four nation. This growth is driven by a fertility rate of 4.2 births per woman, contributing to a median age of 19.5 years, younger than #4 Egypt’s 24.1. If current trends hold, Ethiopia will surpass DR Congo by 2030, making it a demographic contender in East Africa. Its agricultural economy supports 70% of employment, while GDP per capita at $1,020 lags behind #1 Nigeria’s $2,160.

Egypt ranks fourth with 107.2 million people, 95% of whom live within 20 kilometers of the Nile River—a density that creates one of the world’s most concentrated populations. Its growth rate has slowed to 1.7% annually, below the sub-Saharan average of 2.7%, leading to a demographic slowdown compared to Nigeria’s 2.4% and Ethiopia’s 2.5%. Cairo alone houses 21 million residents, making it Africa’s largest city and a pressure point for housing and water. Egypt’s fertility rate of 3.3 births per woman is the lowest among the top four, signaling a gradual aging trend, though its median age of 24.1 years remains younger than #1 Nigeria’s 18.1. The country’s GDP per capita of $4,000 tops the list, boosting economic output per person.

Tanzania leads Africa in population growth with an annual rate of 3.0%, outpacing #6 South Africa’s 0.6% by a factor of five. Its 68.1 million people drive one of the continent’s fastest urbanization rates, as cities like Dar es Salaam expand at 5.6% annually. This demographic surge supports a dual economy where tourism generates $2.5 billion yearly and agriculture employs 65% of the workforce. Yet the rapid growth strains infrastructure, making it a land of opportunity and challenge — cheaper land than in #7 Kenya attracts foreign investors, but housing supply trails demand by 40%.

South Africa ranks sixth with 63.1 million people, yet its population growth of 0.6% is barely above replacement level — slower than the average African nation’s 2.4%. Despite this, it remains the continent’s most industrialized economy, contributing 18% of sub-Saharan Africa’s GDP. A concrete data point: the country generates 230 million tonnes of coal annually, fueling 85% of its electricity. Compared to #5 Tanzania’s rapid expansion, South Africa’s demographic stability allows for more predictable urban planning, though unemployment at 32.9% keeps social pressures high.

Kenya holds seventh place at 53.3 million, powered by a birth rate of 3.3 children per woman — higher than #8 Sudan’s 3.0. The tech hub Nairobi drives youth migration, with 75% of the population under 35, fueling a $1 billion tech sector that grows 10% annually. This digital ecosystem is 30% faster than the Ethiopian average in startup formation, though urbanization strains water supplies where 40% of Nairobi lacks consistent access. Kenya’s mix of demographic youth and digital innovation keeps it firmly in the top ten.

Sudan’s 51.6 million population ranks it eighth — a surprise given ongoing conflict, demonstrating that war slows but does not halt demographic expansion. Its growth rate of 2.5% per year adds 1.3 million people annually, faster than #7 Kenya’s 2.3% despite economic instability. One concrete metric: 60% of the population is under 30, creating a youthful bulge that could either drive recovery or strain resources. Compared to #6 South Africa’s sluggish growth, Sudan’s resilience shows that conflict alone does not curb numbers — but GDP per capita at $752 remains 75% lower than the sub-Saharan average.

Algeria dominates as Africa’s largest country by land area, spanning 2.38 million km², yet boasts the lowest population density in the top ten at just 19.9 people per km². This vast expanse supports 47.4 million residents, a figure that dwarfs #10 Uganda's population by only 1.5 million despite being nearly 10 times larger. Compared to the runner-up in area, Algeria is 38% bigger than the second-largest country on the continent. Its geographic scale positions it as a key player in North African trade and energy, with natural gas exports exceeding $20 billion annually. The low density allows for significant agricultural potential, contrasting sharply with Uganda's crowded landscapes.

Uganda closes the list with 45.9 million people packed into just 241,550 km², making it one of Africa’s most densely populated nations at 190 people per km²—nearly 10 times denser than #9 Algeria. Driven by a median age of 16, one of the world's youngest populations, its annual growth rate of 3.3% surpasses the African average by 0.8 percentage points. This youthful demographic fuels rapid urbanization but strains infrastructure, with 48% of citizens under 15. In comparison to the runner-up in population, Uganda is 2.7% smaller yet covers 90% less land, highlighting extreme density challenges that require innovative agricultural solutions.