The Population of South Africa (Grade 10 NSC Matric Economics): Revision Notes
The Population of South Africa
Understanding South Africa's population size
South Africa has experienced remarkable population growth over the past few decades. The country's population expanded dramatically from 22 million people in 1970 to 45 million by 2001. This represents one of the most rapid population growth rates globally, highlighting the significant demographic changes occurring in the country.
In late 2025, South Africa's population had grown to over 65 million people.
This rapid population expansion has important implications for the country's economy, as it affects everything from job creation needs to the demand for housing, education, and healthcare services.
Factors influencing population growth
Population growth in any country is shaped by three main factors: fertility (birth rates), mortality (death rates), and migration (people moving in and out of the country). Understanding these factors helps explain why South Africa's population has grown so rapidly.
Birth rates and social factors
High birth rates are closely linked to poverty levels and limited access to education. When families struggle economically, children are often seen as future sources of income and support. Additionally, areas with lower education levels, particularly for women, tend to have higher fertility rates.
Rural versus urban patterns
Fertility rates tend to be significantly higher in rural areas compared to urban centres. In rural communities, women often have lower social status and children play important roles in agricultural work and family support systems. This creates economic incentives for larger families.
Infrastructure pressures
High birth rates create substantial pressure on governments to provide adequate social services, housing, and infrastructure. As the population grows rapidly, countries must invest heavily in schools, hospitals, roads, and other essential services to meet the needs of their expanding populations.
Population composition changes
In South Africa, the proportions of different population groups remained relatively stable until 1960. However, since then, there has been a notable shift with the black population component increasing whilst the white population component has decreased as a proportion of the total.
Natural growth rate
The natural growth rate of a population refers to the mathematical difference between the birth rate and the death rate in a country. This calculation excludes migration and focuses purely on the balance between people being born and people dying within the country's borders.
When birth rates exceed death rates, a country experiences natural population growth. When death rates are higher than birth rates, the population naturally declines.
The demographic cycle
As countries develop economically, they typically experience predictable patterns in population growth and mortality rates. This process is known as the demographic cycle, and it helps explain how economic development affects population trends.
The demographic cycle consists of four distinct stages that countries may progress through:
The Four Stages of Demographic Development
Stage 1: Traditional societies In very poor and traditional societies that have not yet developed economically, both death rates and birth rates tend to be extremely high. Poor medical care and limited healthcare infrastructure result in high death rates from preventable diseases. However, birth rates are also very high as families compensate for expected child mortality. The result is that population size either remains constant or grows only very slowly, as high birth rates roughly balance high death rates.
Stage 2: Early development As countries begin to develop economically, improved access to healthcare and better infrastructure cause death rates to drop significantly. However, birth rates remain high during this stage. This combination creates a rapid increase in total population, as fewer people are dying but the same number are being born.
Stage 3: Continued development Continued economic development leads to urbanisation, with more people moving to cities and improving their qualifications and incomes. Better medical care means fewer infants die and older people live longer, causing death rates to fall further. Simultaneously, more affluent couples begin wanting fewer children, leading to declining birth rates. The result is continued population growth, but at a slower pace than Stage 2.
Stage 4: Advanced economies In highly developed economies, many women work full-time and most couples practice birth control effectively. Birth rates continue falling until few couples have more than two children. Eventually, birth rates become as low as death rates, causing population growth to stabilise. The population number may even decline if birth rates fall below death rates. In response, governments in these countries often try to encourage immigration to maintain population levels.
Current population trends and projections
Recent data provides important insights into South Africa's current demographic situation:
Current population statistics
By 2010, mid-year estimates placed South Africa's population at approximately 50 million people, with 51% being female. The total population growth rate between 2009 and 2010 was estimated at 1.06%, representing a significant slowdown from previous decades.
Declining growth rates
The population growth rate has decreased dramatically from 2.9% in the 1960s to just over 1% currently. This slower growth reflects important changes in both birth and death patterns within the country.
Factors behind slower growth
The reduced population growth rate results from two main factors: rising death rates attributed to HIV/AIDS, and declining birth rates. In 2001, the average South African woman had almost 3 children, but by 2010 this had fallen to 2.4 children per woman.
Age structure characteristics
South Africa has a relatively young population. The largest age group consists of people between 15 and 19 years old. Only 7.6% of the population is older than 60 years, indicating a population structure typical of a developing country.
Impact of HIV/AIDS on population trends
HIV/AIDS has had a profound impact on South Africa's demographic patterns, fundamentally altering population growth trajectories.
Life expectancy effects Life expectancy has fallen in recent years primarily due to the HIV/AIDS epidemic. This represents a reversal of the typical pattern where life expectancy increases as countries develop economically.
Scale of the epidemic Approximately 5.2 million people in South Africa are HIV positive, representing more than 10% of the total population. This makes South Africa one of the countries most severely affected by the HIV/AIDS pandemic globally.
Impact on mortality statistics
Statistics South Africa estimated that in 2010, around 1,066,401 people were born whilst about 654,360 people died. Of those who died, it is believed that 281,404 deaths (or 43%) were due to AIDS-related causes. This demonstrates how significantly the epidemic has affected the country's death rates and overall population dynamics.
Migration and urbanisation patterns
Population movement both within and into South Africa significantly affects the country's demographic landscape and economic development patterns.
Internal migration drivers
People migrate from rural to urban areas primarily seeking employment opportunities and improved living standards. This internal migration is a major driver of urbanisation - the growth of urban areas relative to rural areas.
Defining urbanisation
A country is considered urbanised when more than 50% of its population lives in urban areas rather than rural areas. This threshold represents a significant economic and social transition point for developing countries.
South African urbanisation levels
South Africa is more than 60% urbanised, and this urbanisation process continues to accelerate. The major urban centres include Gauteng, Cape Town, East London, Durban, Port Elizabeth, Uitenhage, and Bloemfontein. These cities serve as economic hubs attracting people from across the country and region.
International migration patterns
South Africa experiences both immigration and emigration flows. There is a steady flow of immigrants entering the country, particularly from other African countries, many of which are experiencing economic difficulties or conflict. Most immigrants come from poorer African countries, often those affected by war and political instability.
Illegal immigration challenges
It is estimated that there are more than 8 million illegal immigrants currently living in South Africa. This substantial undocumented population presents challenges for government planning and service delivery, whilst also reflecting the country's role as a regional economic destination.
Key Points to Remember:
- South Africa's population grew rapidly from 22 million (1970) to 45 million (2001), representing one of the world's highest growth rates
- Population growth is determined by fertility rates, mortality rates, and migration patterns, with high birth rates linked to poverty and limited education
- The demographic cycle shows how countries progress through four stages of population development as they become more economically advanced
- HIV/AIDS has significantly impacted South Africa's population trends, causing rising death rates and contributing to slower overall population growth
- South Africa is over 60% urbanised, with continued rural-to-urban migration driven by employment opportunities and more than 8 million illegal immigrants from other African countries