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

Cleanest Lakes in King County, Washington

Findley Lake in King County leads the rankings with a water quality grade of NR. Below are the top 50 cleanest monitored lakes in King County, Washington, ranked by EPA water quality score.

Ranked List

#LakeCountyGradeClarityPhosphorusAlgae
1Findley LakeKingNR---
2Mason LakeKingNR---
3Lake Kulla KullaKingNR---
4Thompson LakeKingNR---
5Lake MoolockKingNR---
6SMC LakeKingNR---
7Derrick LakeKingNR---
8Nordrum LakeKingNR---
9Snoqualmie LakeKingNR---
10Deer LakeKingNR---
11Bear LakeKingNR---
12Hester LakeKingNR---
13Upper Wildcat LakeKingNR---
14Lake CarolineKingNR---
15Kaleetan LakeKingNR---
16Tuscohatchie LakeKingNR---
17Pratt LakeKingNR---
18Lower Tuscohatchie LakeKingNR---
19Gold LakeKingNR---
20Chetwoot LakeKingNR---
21Angeline LakeKingNR---
22Azurite LakeKingNR---
23Glacier LakeKingNR---
24Lake ClariceKingNR---
25Marmot LakeKingNR---
26Lake IlswootKingNR---
27Fisher LakeKingNR---
28Locket LakeKingNR---
29Otter LakeKingNR---
30Delta LakeKingNR---
31Big Heart LakeKingNR---
32Lake MalachiteKingNR---
33Copper LakeKingNR---
34Little Heart LakeKingNR---
35Lake DorothyKingNR---
36Francis LakeKingNR---
37Dream LakeKingNR---
38Marten LakeKingNR---
39Sunday LakeKingNR---
40Lake PhilippaKingNR---
41Loch KatrineKingNR---
42Lake MargaretKingNR---
43Cottage LakeKingNR---
44Phantom LakeKingNR---
45Pine LakeKingNR---
46Beaver LakeKingNR---
47Ames LakeKingNR---
48Langlois LakeKingNR---
49Lake JoyKingNR---
50Lake MarcelKingNR---

More Answers for King County, Washington

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