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Superfund sites in Washington

Washington has 47 Superfund sites: 3.6% of the US total of 1,316. That ranks #8 by count and #14 per person (0.59 per 100,000 residents) of 51.

#14

national rank (per capita)

Superfund sites

0.59

per 100k residents

The data

Source: EPA National Priorities List, September 2026. Every National Priorities List site in the 50 states and DC, at the EPA’s coordinates. Sites in the territories are left out.

Licence: U.S. government data: no copyright, free to reuse

Washington: 47 rows (CSV)All of the US (CSV)

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Named Superfund sites in Washington include

Fairchild Air Force Base (4 Waste Areas) · Seattle Municipal Landfill (Kent Highlands) · Pacific Car & Foundry Co. · Centralia Municipal Landfill · North Market Street · Pasco Sanitary Landfill · Hanford 300-Area (USDOE) · Hanford 100-Area (USDOE) · Hanford 200-Area (USDOE) · General Electric Co. (Spokane Shop) · Fort Lewis Logistics Center · Bangor Naval Submarine Base

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"Washington has 47 Superfund sites, #8 in the US by count and #14 per person (EPA National Priorities List, September 2026, mapped by InstaMaps)." Free to quote with a link to this page. Population: US Census 2024 estimates.