Countries with the Most Nuclear Power Reactors 2025

Source: IAEA

Countries with the Most Nuclear Power Reactors 2025

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Key Findings

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United States leads in Operational Nuclear Reactors with 93 in 2025.

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Average Operational Nuclear Reactors in 2025: 40.38 · median: 31.

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Gap in 2025: United States is 6.2× larger than Ukraine.

About This Dataset

Countries with the Most Nuclear Power Reactors 2025

Countries ranked by the total number of operational nuclear power reactors in 2025 according to IAEA Power Reactor Information System data. The United States operates more nuclear reactors than any other country, with 93 operational units generating approximately 20% of the nation's total electricity supply. AI-assisted data.

Analysis

United States heads the table on 93, ahead of France (56) and China (56) in Operational Nuclear Reactors in 2025. 78 separates the highest figure (93) from the lowest (15). First and second are separated by 37, so the leader sits inside the field rather than apart from it. Only 3 of the 8 reach even half the leader's figure (46.5 or more).

Data Insights Below

Data Insights

Numbers, trends & sources behind this chart

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Data Points

8 categories · 1 year

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Top Value

United States

Operational Nuclear Reactors · 2025

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Metrics

Operational Nuclear Reactors

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Period

2025

Single year snapshot

Methodology & source

Data source: IAEA
Coverage: 8 entities · 2025 · 8 observations
Measure: Operational Nuclear Reactors
Last updated: 6 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 2025.

Rankings & Full Data

8 records · Operational Nuclear Reactors · ranked by 2025

✓ 8 sourced

#	Category	2025
🥇	United States	93
🥈	France	56
🥉	China	56
4	Russia	36
5	South Korea	26
6	India	22
7	Canada	19
8	Ukraine	15

Data Sources & References

All external sources cited in this dataset

1 https://pris.iaea.org/pris/ Visit ↗

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How these countries rank across all our charts

Each country's page lists its position in every ranking on ANYSTAT.

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APA

ANYSTAT. (2026). Countries with the Most Nuclear Power Reactors 2025 [Data set]. Data: IAEA. https://anystat.ai/stats/184/most-powerful-nuclear-reactors-by-country

MLA

"Countries with the Most Nuclear Power Reactors 2025." ANYSTAT, 6 Sep. 2026, https://anystat.ai/stats/184/most-powerful-nuclear-reactors-by-country.

Link for your website

<a href="https://anystat.ai/stats/184/most-powerful-nuclear-reactors-by-country">Countries with the Most Nuclear Power Reactors 2025</a> (ANYSTAT)

Countries with the Most Nuclear Power Reactors 2025