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LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water

Lewis County Lake Quality

Washington, 13 lakes, measured by Washington Ecology

Lewis County has 13 monitored lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. The 13 monitored lakes in Lewis County carry whatever clarity, phosphorus, and chlorophyll-a readings Washington Ecology has published, shown as reported.

Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.

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Top-rated places to stay near Lewis County

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Quick Answers for Lewis County

Cleanest lakes in Lewis County →Best swimming lakes in Washington →

Planning a trip? Check special fishing regulations for Walupt Lake — or check the official Washington fishing regulations.

All Lakes in Lewis County

13 lakes · 0 ranked on readings, 13 without enough sampling0 lakes ranked on readings · 13 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicMax DepthAccess
Walupt LakeLewisNo recent samplesNo recent samplesNo recent samplesNo recent samples298.6 ft✓ Public
Packwood LakeLewisNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Glacier LakeLewisNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake ScanewaLewisNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
Blue LakeLewisNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Riffe LakeLewisNo recent samplesNo recent samplesNo recent samplesNo recent samples360.9 ftNot recorded
Mayfield LakeLewisNo recent samplesNo recent samplesNo recent samplesNo recent samples160 ft✓ Public
Granite LakeLewisNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Mineral LakeLewisNo recent samplesNo recent samplesNo recent samplesNo recent samples35 ft✓ Public
Cora LakeLewisNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Jug LakeLewisNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Dumbbell LakeLewisNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Pond Number ThreeLewisNo recent samplesNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.

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Other Counties in Washington

Lincoln County

22 lakes

Grant County

48 lakes

Whatcom County

34 lakes

Yakima County

23 lakes

Snohomish County

52 lakes

Thurston County

29 lakes

Browse every Washington lake, or the full directory of lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..

Source: the Washington State Department of Ecology. See data sources.