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Key Points
- Australia leads global uranium reserves with 28% of the world’s total.
- Uranium reserves are concentrated in a few countries and shape global energy security.
- Current uranium supplies could last 90–130 years at today’s consumption levels.
As nuclear energy once again is brought into worldwide focus, the need to know the uranium reserves by country has become an issue of much more significance than ever before.
Besides this fact, uranium is the key fuel for nuclear power, and its availability has a direct consequence on long-term energy security.
Global uranium reserves in 2022 are estimated at around 6 million tonnes, with a significant share of these concentrated in just a few countries, according to data from the World Population Review.
Which Countries Have the Largest Uranium Reserves in 2026?
The table below shows a ranked list of the top 7 countries with the largest uranium reserves in the world in 2026:
| Rank | Country | Estimated Uranium Reserves (Tonnes) |
| 1 | Australia | 1.68 – 1.95 million |
| 2 | Kazakhstan | 813,900 – 874,000 |
| 3 | Canada | 582,000 – 865,000 |
| 4 | Russia | 500,000+ |
| 5 | Namibia | 500,000+ |
| 6 | Niger | Significant (est. 300,000+) |
| 7 | United States | Notable but limited |
Source: World Population Review-Uranium Reserves by Country 2026
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Belwo are the top 5 countries ranked by uranium prdouction:
1. Australia
Do you know that Australia holds the largest reserve of uranium in the world? It accounts for about 28% of global uranium reserves. Its estimated reserves range between 1.68 and 1.95 million tonnes. Major deposits include Olympic Dam, one of the world’s biggest uranium deposits.
Despite strict mining regulations, Australia remains central to the global uranium supply due to the sheer scale of its resources.
2. Kazakhstan
The country that ranks second in order is Kazakhstan, with a total range of 813,900 to 874,000 tonnes. The country is particularly known for its low-cost in-situ recovery (ISR) mines.
Although not the largest holder, Kazakhstan dominates uranium production globally, which makes it a critical supplier.
3. Canada
Canada holds between 582,000 and 865,000 tonnes of uranium. It is largely concentrated in the Athabasca Basin.
This region is famous for some of the highest-grade uranium deposits in the world. This makes Canadian uranium extremely valuable. It remains a stable and reliable supplier in the global nuclear fuel market.
4. Russia
Russia possesses over 500,000 tonnes of uranium reserves. Much of this remains underdeveloped. This gives Russia strong long-term potential as nuclear demand increases.
Moreover, it also plays a key role in uranium processing and nuclear technology.
5. Namibia
Namibia is home to over 500,000 tonnes of uranium reserves and is one of the largest uranium producers in Africa. Large-scale mines such as Rossing and Husab support its position in global supply chains.
How Long Will Uranium Reserves Last?
Based on current consumption, experts estimate uranium could last 90–130 years, though advances in recycling and reactor efficiency may extend this timeline.
Quick Uranium Reserves Trivia
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Global uranium reserves are estimated at 6 million tonnes.
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These countries dominate the uranium reserves by country rankings.
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Australia holds the largest uranium reserves in the world, while Kazakhstan leads production.
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Long-term availability suggests uranium could last 90–130 years at current consumption levels.
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