Every plan the City makes is about people.How many will live in Cape Town, where they will live, and what their needs will be for housing, transport, water, electricity, health, and social services.
Population projections don’t try to predict the exact future but tell stories about possible futures based on current knowledge and reasonable changes over time. This report provides a short, non-technical overview of Cape Town’s population projections from 2023 to 2050 and the thinking behind them.
City of Cape Town Population Projections
Introduction
Key Metrics
6 398 048
2050 Total Population – Economy Stagnates Scenario
Represents slower growth and weaker economic performance.
7 219 781
2050 Total Population – Business-as-Usual Scenario
The central population projection Cape Town is planning around.
8 364 386
2050 Total Population – Economy Outperforms Scenario
Represents higher economic growth attracting more migrants.
The City’s Demographic Landscape
Cape Town Today: The Starting Point
The projections start from the most recent and credible data available, including Census 2022, national mid-year population estimates, and City administrative data.
Cape Town is already a fast-growing and diverse metro:
- It continues to attract people from other parts of South Africa and from abroad.
- Most growth is concentrated among young adults and working-age groups.
- Fertility levels are declining.
- People are living longer due to gradual improvements in health.
How the Population Changes Over Time
Population change happens through three main drivers:
- Births (fertility)
- Deaths (mortality)
- Movement of people in and out of the city (migration)
In Cape Town, migration is the most powerful and uncertain driver of change. While births and deaths change slowly over time, migration can respond quickly to economic conditions, housing availability, and quality of life.
Population Projections Scenarios
No one knows exactly how the future will unfold. Economic conditions may improve or weaken, policy choices may change, and unexpected shocks can occur. For this reason, the City does not rely on a single projection. Instead, it uses three scenarios that describe different but plausible futures.
Economy Stagnates Scenario
Business as Usual Scenario
Economy Outperforms Scenario
Comparing All Scenarios
How Population Projections Are Used
These projections support long-term infrastructure planning, housing strategies, budgeting, and stress-testing of policies under different futures.
Key demographic indicators across economic scenarios
Conclusion
Population projections are not precise forecasts, but practical tools to help the City prepare for the future. Rather than relying on a single number, a range is be used to consider possible scenarios and guide decisions that remain robust under different conditions. This allows planners to anticipate future demand for housing, infrastructure, and basic services by understanding how population size, age structure, and migration patterns may change over time. Just as importantly, projections help identify where growth is likely to occur, supporting more effective spatial planning and targeted investment.
They also play a key role in budgeting, resource allocation, and testing the resilience of policies. By assessing how plans perform under both higher and lower growth scenarios, the City can reduce risk and avoid being under or over prepared. Population projections should therefore be treated as evolving tools, regularly updated with new data and used alongside other evidence. Ultimately, their value lies not in predicting the future exactly, but in enabling better, more flexible planning decisions today.