Countries Building the Most Nuclear Reactors 2026
Key Findings
🏆
China leads in Reactors Under Construction with 37 in 2026.
📊
Average Reactors Under Construction in 2026: 4.50 · median: 2.
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Gap in 2026: China is 37× larger than Iran.
About This Dataset
Countries Building the Most Nuclear Reactors 2026
Power reactors with construction formally under way in 2026, as recorded by the IAEA. A reactor enters this count on the date of first concrete for its base slab, so units that are announced, licensed or ordered but not yet poured are excluded, as are research reactors.
Analysis
China is building 37 of the 72 reactors under construction worldwide, 51.4% of the global total and 6.2 times the 6 of India. 3 of the 16 countries here have no reactor in operation yet: Egypt, Turkey and Bangladesh. 5 countries are building a single unit. Outside the leader no country has more than 6 under way.
Data Insights
Numbers, trends & sources behind this chart
Methodology & source
- Data source
- IAEA Power Reactor Information System, via Wikipedia
- Coverage
- 16 entities · 2026 · 16 observations
- Measure
- Reactors Under Construction
- Last updated
- 7 September 2026
- Compiled by
- The ANYSTAT team, from the source above
How the figures are calculated
- Values use the measure and unit named on this page. Consult the dataset description and cited source for coverage, definitions and any unit conversions. Displayed values may be rounded for readability.
- Entities are ranked highest-first on their value in 2026.
Data Sources & References
All external sources cited in this dataset
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