3 South African provinces bracing for a massive elderly population boom
SA’s older population is projected to double by 2050, and this demographic shift will stretch the Old Age Grant and place huge pressure on working-age citizens.
South Africa is hurtling towards a major demographic transition. Driven by declining fertility rates and improved life expectancy, the proportion of persons aged 60 and older is projected to rise sharply from 10.5% in 2025 to 16.2% of the national population by 2050.
In absolute terms, South Africa’s older population will nearly double, surging from 6.8 million in 2026 to 13.4 million mid-century.
While the country ages, this growth is highly uneven. Three specific provinces are set to experience the most dramatic expansions over the next two decades, profoundly altering their socio-economic landscapes.
Gauteng leads the trajectory with a projected 60.3% increase, soaring to 4.28 million older persons. Mpumalanga and the Western Cape follow closely, with expected growth rates of 55.7% and 54.2% respectively.
In stark contrast, the Eastern Cape (22.0%) and Free State (27.1%) will see the slowest growth in their elderly demographics during this period.
Table: Projected Older Population Growth (2026 – 2050)
| Province | 2026 Projection | 2050 Projection | Percentage Change |
|---|---|---|---|
| Gauteng | 1,703,176 | 4,287,558 | 60.3% |
| Mpumalanga | 480,664 | 1,086,190 | 55.7% |
| Western Cape | 975,041 | 2,130,185 | 54.2% |
(Source: Mid-year Population Estimates, 2025 series)
The heavy burden on the Old Age Grant
This rapid ageing poses a severe threat to South Africa’s already fragile social security net. Currently, the Older Persons Grant (Old Age Grant) supports approximately 3.9 million beneficiaries. While the 2026 budget outlines an R85 increase, bringing the grant to R2,400 per month, researchers warn it is fundamentally insufficient.
A University of Cape Town study reveals that the grant rarely serves as an individual resource; instead, it is routinely stretched to sustain entire households. With over 60% of beneficiaries living in households of five or more people, and high unemployment among working-age adults, older persons are frequently forced to sacrifice their own chronic care and nutritional needs to feed their families.
Furthermore, older people face unique care needs. Recent data shows 68% live with hypertension and 24% have diabetes. Despite 40% of the elderly requiring full-time care, only 1 in 25 receive the supplementary Grant-in-Aid (currently rising to R580), leaving families to absorb the physical and financial costs of caregiving.
A shrinking economic engine
The most alarming implication of this population boom is a shrinking, overburdened working-age base. The national old-age dependency ratio already rose to 13.6% in 2024, meaning fewer workers are supporting an expanding pool of retirees.
For economic hubs like Gauteng, which shed a staggering 54,000 jobs in the fourth quarter of 2025, an exploding elderly population spells trouble. A sputtering formal economy combined with rising transport and electricity tariffs leaves low-to-middle-income households trapped in desperate debt cycles.
If policymakers do not urgently adapt by expanding elder care infrastructure and reviving working-age employment, the dream of dignified, healthy ageing will remain out of reach for millions of ordinary South Africans.