How many nuclear power plants are in Washington?

1, with 1 GW of nameplate capacity between them, spread over 1 county. That is the EIA-860M operating count for 2026-07.

Is there a map of Washington nuclear power plants?

Yes — the map above. Each dot is one nuclear power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest nuclear power plant in Washington?

Columbia Generating Station, at 1 GW. The table is sorted largest first, so the rest follow it.

Is there a nuclear power plant near me in Washington?

The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.

Which grid operator runs Washington's nuclear power plants?

No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Washington is largely a vertically integrated utility rather than an organised market.

How current is this, and what is left out?

EIA-860M for 2026-07. EIA technology "Nuclear" — commercial reactors reporting on EIA-860M. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.

Nuclear Power Plants in Washington

Every operating nuclear power plant in Washington on EIA-860M for 2026-07: 1 plants, 1 reactors and 1 GW of nameplate capacity across 1 county.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 1; 1 generating units
Nameplate capacity: 1 GW
Counties: 1
Grid operator: Mixed; no single ISO covers a majority

Map of nuclear power plants in Washington

Every one of the 1 plants is drawn at the coordinate EIA files for it.

Loading map…

Nuclear · 1

List of nuclear power plants in Washington

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

nuclear power plants in Washington

Columbia Generating StationNuclear	Energy Northwest- Columbia	Benton	1,200	1	1984	Operating

Largest nuclear power plants in Washington

1Columbia Generating StationBenton County, Washington1,200 MW

Nuclear power plants by county in Washington

The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.

County	Plants	Nameplate MW
Benton	1	1,200

Nuclear Power Plants in Washington: FAQ

How many nuclear power plants are in Washington?: 1, with 1 GW of nameplate capacity between them, spread over 1 county. That is the EIA-860M operating count for 2026-07.
Is there a map of Washington nuclear power plants?: Yes — the map above. Each dot is one nuclear power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest nuclear power plant in Washington?: Columbia Generating Station, at 1 GW. The table is sorted largest first, so the rest follow it.
Is there a nuclear power plant near me in Washington?: The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
Which grid operator runs Washington's nuclear power plants?: No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Washington is largely a vertically integrated utility rather than an organised market.
How current is this, and what is left out?: EIA-860M for 2026-07. EIA technology "Nuclear" — commercial reactors reporting on EIA-860M. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.