Where is Fivemile Lake?

Fivemile Lake is a lake in King County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.

Fivemile Lake

King County, Washington38 acresView map Directions

No nutrient or algae sampling on record from Washington Ecology for this lake.

Area

38 acres

Surface area

Shoreline

1.1 mi

Measured length

Impaired · Nutrients (phosphorus, nitrogen)

See the measurements Directions Where to stay

Fivemile Lake in King County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 38 acres.

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Fivemile Lake is a 38-acre lake in King County, Washington.

Source: EPA Water Quality Portal sampling records, WA Ecology. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Fivemile Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether Fivemile Lake is safe to swim in today is a call for the Washington State Department of Ecology and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Fivemile Lake

These are the measurements Washington Ecology publishes for Fivemile Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Fivemile Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Surface area

38 acres

Shoreline

1.1 mi

No bathymetric survey has been published for Fivemile Lake, so its depth is not documented here.

Stays via Stay22

Stays near Fivemile Lake

Compare lakeside cabins, hotels, and vacation rentals near Fivemile Lake in King County, Washington — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Fivemile Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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Fishing Fivemile Lake

→ Fivemile Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Fivemile Lake is officially listed as impaired under Clean Water Act §303(d) in the 2018 EPA reporting cycle (IR category 5).

Causes of impairment

Nutrients (phosphorus, nitrogen)

Designated uses not supporting: Aquatic life.

Source: EPA ATTAINS assessment unit WA17110014001173_001_001 · Official waterbody report

Nearby Lakes in King County

Lake Killarney1 miView →Lake Geneva1.3 miView →North Lake2.2 miView →Steel Lake3.8 miView →Star Lake5.6 miView →Angle Lake20 ft clear—View →

Frequently asked questions about Fivemile Lake

Where is Fivemile Lake?: Fivemile Lake is a lake in King County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.
What is the water quality of Fivemile Lake?: Fivemile Lake in King County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Surface area: 38 acres.
Is Fivemile Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Fivemile Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.