View live population, charts & trends: Population of South Africa, A Total Fertility Rate (TFR) of 2.1 represents the Replacement-Level Fertility: the average number of children per woman needed for each generation to exactly replace itself without needing international immigration. Two important perennial rivers, the Niger and the Benue, as well as their tributaries, assure sufficient water provision. Just 13 years ago, the country's population was 34 million, which has now grown to 45 million but is projected to reach 276 million by 2100, which is close to the current population of the U.S. By comparison, the age structure of the global population has moved toward a more rectangular shape, describing a population that is only slowly expanding, with lower birth and death rates and more people living to old age. Africa is the second-largest and second most populous continent on earth with an estimated population in 2016 of 1.2 billion people. Demographers use these simple graphs to evaluate the extent of development for a given population – usually an individual nation – and to make predictions about the types of services that population will need e.g. A Population pyramid (also called "Age-Sex Pyramid") is a graphical representation of the age and sex of a population. The population pyramid that represents Stage 3 in the demographic transition has nearly vertical sides, with a broad base and relatively broad peak, reflecting reduced fertility, reduced childhood mortality, and increased survival; the older age categories make up a larger proportion of the population than in earlier stages, and the size of the population stabilizes. NOTE: Dependency Ratio does not take into account labor force participation rates by age group. A population pyramid, or age structure graph, is a simple graph that conveys the complex social narrative of a population through its shape. The population of Africa is currently projected to quadruple in just 90 years, with a growth rate that will make Africa more important than ever to the global economy. A value below 2.1 will cause the native population to decline, See also: Countries in the world ranked by Life Expectancy. These are just a few of the linkages between population and land use/land cover (Lambin and others, 2001). Central Africa. By 2100, more than half of the world's growth is expected to come from Africa, reaching 4.1 billion people by 2100 to claim over 1/3 of the world's population. The young age structure of the West African population — almost half of West Africans are 15 years old and younger — assures continued population growth into the near and medium future. Africa currently has a very low population density of about 65 people per square mile, which puts it behind Asia, Europe, and South America. The population in Africa has grown rapidly over the last 40 years and it has a relatively young population, with more than half of the population under 25 in some states. Nigeria is set for one of the biggest population booms in world history and it's expected to increase by a factor of eight in just two or three generations. The life expectancy is also low – less than 50 in many nations and averaging 52 across the continent as a whole. Dietary demands of the urban population translate into land demands in the urban periphery, in particular for the cultivation of high-value, perishable crops, such as fruits and vegetables. Youth Dependency Ratio Definition: population ages 0-15 divided by the population ages 16-64. Formula: ([Population ages 0-15] ÷ [Population ages 16-64]) × 100, Elderly dependency ratio Definition: population ages 65-plus divided by the population ages 16-64.Formula: ([Population ages 65-plus] ÷ [Population ages 16-64]) × 100, Total dependency ratio Definition: sum of the youth and old-age ratios. South Africa. Africa's Nigeria is currently one of the most populous countries on earth, and as China 's population shrinks and India plateaus, Nigeria will reach nearly 1 billion people by 2100 and come close to surpassing China. The UN Population Fund stated in 2009 that the population of Africa had hit the one billion mark and had therefore doubled in size over the course of 27 years. The age structure of West Africa’s current population forms the shape of a pyramid with a wide base and concave sides, indicating a high birth rate and a relatively high death rate, resulting in rapid growth. "African countries are all growing fast ... because there is a large number of women who have no access to planning their families," she said. Thus, the Peanut Basin of western Senegal, the Niger-Nigeria border region, central Burkina Faso, and southwestern Chad stand out by their relatively high rural population densities. but in Africa, the issue over family planning leads to the reverse effect. 54 countries make up the continent of Africa, and while population growth is relatively low in some areas, countries such as Nigeria and Uganda are increasing at an advanced rate. 41% of the African population is under the age of 15. boom in Africa's population will be in sub-Sahara, World Population Prospects (2019 Revision), Democratic Republic of the Congo: 71,246,355, Saint Helena, Ascension and Tristan da Cunha (UK) (non-sovereign): 4,124. The Population Fund’s Director Thoraya Obeid spoke to the BBC at the time and underlined the reasons behind the growing population. West Africa’s population is unevenly distributed throughout the region, reflecting differences in the physical environment as well as the history of human settlement (see map above). miles). This is a five-fold increase in population since 1950, when 73 million people lived in the region, which makes West Africa the fastest growing of any of the world’s regions. Aerial view of Ouagadougou © Gray Tappan/USGS, Aerial view of growing rural settlements in southern Benin © Gray Tappan/USGS, Aerial view of Ouagadougou © Matt Cushing/USGS, The Deforestation of the Upper Guinean Forest. A population pyramid, also called an "age-gender-pyramid", is a graphical illustration that shows the distribution of various age groups in a population (typically that of a country or region of the world), which forms the shape of a pyramid when the population is growing. The age structure of West Africa’s current population forms the shape of a pyramid with a wide base and concave sides, indicating a high birth rate and a relatively high death rate, resulting in rapid growth. A majority of West Africans still live in rural areas, yet the urban population has increased from only 8.3 percent in 1950 to almost 44 percent in 2015. Population pyramids for selected countries in the regions of the world This page is a companion page to: UN Population Policies, World Demographics, Job Fatalities and The Extermination of Men. The 2019 population density in South Africa is 48 people per Km2 (125 people per mi2), calculated on a total land area of 1,213,090 Km2 (468,376 sq. There are three types of age dependency ratio: Youth, Elderly, and Total. Most countries will at least triple in population as the region has very high fertility rates and very little family planning in most regions. This has reduced considerably over the course of the last twenty years with a widespread HIV and AIDS epidemic taking much of the blame for that statistic. The boom in Africa's population will be in sub-Sahara, including growth in countries like Tanzania, which is one of the poorest countries on earth. Formula: (([Population ages 0-15] + [Population ages 65-plus]) ÷ [Population ages 16-64]) × 100. "It's an African phenomenon of a large growing population and a large percentage of young people in the population.". All three ratios are commonly multiplied by 100. schools, hospitals, homes, etc. What might explain this noticeable difference between Nigeria and the rest of West Africa? Africa is home to 54 recognized sovereign states and countries, 9 territories and 2 de facto independent states with very little recognition. Not only has West Africa’s population been growing rapidly at an average annual rate of 2.75 percent, it has also become more urban, with some major cities recording mean annual growth rates of up to 9 percent. As much of Africa is still developing, and it contains some of the poorest countries on earth, time will tell how it will sustain such massive population growth. In the arable regions, where soils are fertile and the climate is favorable for crop cultivation, higher population densities are found. Africa's Nigeria is currently one of the most populous countries on earth, and as China's population shrinks and India plateaus, Nigeria will reach nearly 1 billion people by 2100 and come close to surpassing China. It suggests a growing population. People tend to settle where the climate is clement, the soils are fertile, and economic opportunities are present.
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