In October 2026, Statistics South Africa released its report on Provincial Gross Domestic Product for 2025, revealing that Gauteng accounted for 32.6% of the national GDP at R2.62 trillion.
The data shows that Gauteng remains the growth engine of the country, generating nearly a third of the national economy. This output comes from a land area of just 18,178 square kilometres, making it South Africa’s smallest province by geographic size at only 1.5% of the total land area.
Despite its small footprint, Gauteng is home to 15 million people, making it the most populous province in the country. This population density helps explain why the region punches above its weight economically alongside its concentration of corporate headquarters.
Statistics South Africa reported that Gauteng hosts 44% of all registered businesses in the country and serves as the headquarters for 70% of major listed companies. These corporations include Standard Bank, FirstRand, Discovery, and the Johannesburg Stock Exchange.
Did You Know? Within the finance, real estate, and business services sector, Gauteng produces 43% of all national value added, whereas tertiary industries constitute 68.1% of its overall provincial economy.
Economic Output and Industry Breakdown
State services value added is driven by the province at a rate of 41%, alongside 40% of overall national manufacturing and 31% of national construction work. Finance, real estate, and business services alone account for 29% of the provincial GDP.
In contrast, the Northern Cape stands as Gauteng’s polar opposite in both geographic size and economic output. Spanning 372,889 square kilometres, the Northern Cape is South Africa’s largest province by land area at 30.5% of the national total.
However, the Northern Cape is the least populous province, housing only 1.38 million people or 2.2% of the national population. It contributed R219.95 billion, or 2.7%, to the national GDP in 2025, placing it R2.4 trillion behind Gauteng.
Mining and personal services drive Northern Cape output
Unlike Gauteng’s service-driven economy, the Northern Cape derives its economic output largely from primary industries such as mining and quarrying. The province generates 29.9% of its GDP from mining and quarrying, followed by personal services at 12.5%.
Ranking as the fourth-biggest contributor to national mining production, the Northern Cape generated 12% of South Africa’s mining value added throughout 2025. It ranks behind North West at 26%, Limpopo at 25%, and Mpumalanga at 20%.
Economic growth rates also reveal stark differences between the two regions in real terms. Gauteng’s economy grew by 1.1% in 2025, improving from 0.6% in 2024 and ranking as the second fastest-growing province behind the Western Cape at 1.4%.
The Northern Cape expanded by 0.9% in 2025, matching the national average and improving from 0.2% in 2024.
Expert Insight: The divergence in economic output and industrial focus between Gauteng and the Northern Cape highlights structural disparities across South Africa’s provincial economies, where urban hubs drive tertiary services while expansive provinces rely heavily on primary resources like mining.
Frequently Asked Questions
When was the Provincial Gross Domestic Product report released?
Statistics South Africa released its report on Provincial Gross Domestic Product for 2025 in October 2026.
What percentage of national GDP did Gauteng contribute in 2025?
Gauteng accounted for 32.6% of the national GDP in 2025, amounting to R2.62 trillion.
How much did the Northern Cape contribute to the national economy in 2025?
The Northern Cape contributed R219.95 billion, or 2.7%, to the national GDP in 2025.
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