Homes near an active cleanup site in King County, by city
As of September 2026, 41% of homes — about 247,280 of the 607,268 on record across the 45 King County cities VetTheHome tracks — are homes within a half-mile of an active Washington Ecology cleanup site, per public records aggregated by VetTheHome.
Updated September 2026 · refreshed weekly
Share of homes within a half-mile of an active Washington Ecology cleanup site. By city.
| # | City | Homes on record | Within ½ mi of an active cleanup site |
|---|---|---|---|
| 1 | Pacific | 1,991 | 86% |
| 2 | Seattle | 198,865 | 72% |
| 3 | Hunts Point | 196 | 65% |
| 4 | Shoreline | 17,460 | 60% |
| 5 | Seatac | 6,570 | 57% |
| 6 | Tukwila | 5,302 | 52% |
| 7 | Burien | 14,542 | 44% |
| 8 | Federal Way | 23,519 | 43% |
| 9 | Des Moines | 8,768 | 41% |
| 10 | Mercer Island | 7,857 | 32% |
| 11 | Renton | 39,273 | 32% |
| 12 | Kirkland | 24,716 | 31% |
| 13 | Baring | 251 | 30% |
| 14 | Normandy Park | 2,548 | 28% |
| 15 | Auburn | 28,072 | 27% |
| 16 | Carnation | 3,122 | 26% |
| 17 | Bellevue | 34,471 | 26% |
| 18 | Preston | 120 | 25% |
| 19 | Clyde Hill | 1,136 | 23% |
| 20 | Bothell | 7,213 | 22% |
| 21 | Maple Valley | 12,895 | 21% |
| 22 | Newcastle | 4,019 | 21% |
| 23 | Algona | 1,214 | 20% |
| 24 | Fall City | 1,906 | 19% |
| 25 | Covington | 7,373 | 18% |
| 26 | Medina | 1,256 | 18% |
| 27 | Enumclaw | 8,440 | 17% |
| 28 | Kent | 34,198 | 17% |
| 29 | Lake Forest Park | 5,052 | 17% |
| 30 | Woodinville | 10,931 | 15% |
| 31 | Issaquah | 12,354 | 15% |
| 32 | Vashon | 5,438 | 14% |
| 33 | Snoqualmie | 5,450 | 14% |
| 34 | Kenmore | 7,540 | 11% |
| 35 | Ravensdale | 1,407 | 8.7% |
| 36 | Black Diamond | 4,273 | 8.1% |
| 37 | Yarrow Point | 437 | 7.8% |
| 38 | Redmond | 22,904 | 7.4% |
| 39 | Skykomish | 537 | 7.1% |
| 40 | Sammamish | 21,611 | 6.2% |
| 41 | North Bend | 6,193 | 6.1% |
| 42 | Duvall | 5,174 | 1.4% |
| 43 | Milton | 451 | 0.7% |
| 44 | Beaux Arts | 122 | 0.0% |
| 45 | Snoqualmie Pass | 101 | 0.0% |
A home is counted when the nearest active Washington Department of Ecology cleanup site lies within a half-mile (2,640 feet) of the parcel. We use a half-mile because that is the approximate minimum search distance ASTM E1527-21 (Table 2) sets for state cleanup, leaking-storage-tank, and brownfield records in a Phase I Environmental Site Assessment. “Active” means the site is on Ecology’s Contaminated Sites List — awaiting or undergoing cleanup or investigation — and excludes sites moved to the No Further Action list and bare registered storage tanks. This is an area screening indicator, not a determination about any individual property: proximity alone does not establish that a home is affected. Verify any specific record on Ecology’s “What’s In My Neighborhood” tool (apps.ecology.wa.gov/neighborhood) or its Cleanup and Tank Search.
Sources: Washington State Dept. of Ecology — Toxics Cleanup Program (Contaminated Sites List); ASTM E1527-21 (Phase I Environmental Site Assessment search distances); King County GIS parcel records. Compiled and refreshed weekly by VetTheHome. Aggregate covers the 45 King County cities in our dataset; see the full methodology.
What this means for buyers
Proximity to a listed cleanup site is context, not a verdict. Under the ASTM E1527-21 environmental-assessment standard, a nearby listing is not by itself evidence that any specific home is contaminated. This figure counts homes near a site that is still on Washington Ecology’s active Contaminated Sites List — awaiting or undergoing cleanup or investigation — and excludes sites cleared to “No Further Action.” A higher share reflects an area’s industrial and commercial history; always check an individual address against Ecology’s own records before drawing any conclusion about a specific property.
Check any King County address
More King County data
About this data
These are aggregate figures compiled from Washington public records for general information — estimates and counts, not appraisals, inspections, or legal advice. The county roll-up covers the cities in our dataset and excludes unincorporated areas; individual parcels are reported at the address level. Public records contain errors — found one? Email corrections@vetthehome.com.