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LakeQuality
RankLakeCountyStateGradeClarityDepth
1Lobster LakeDouglasMNA13 ft65 ft
2East Fox LakeCrow WingMNA16.4 ft65 ft
3Deep Portage LakeCassMNA15.4 ft105 ft
4Clearwater LakeWrightMNA9.8 ft73 ft
5Clearwater LakeCrow WingMNA13 ft54 ft
6Clearwater LakeClearwaterMNA10 ft65 ft
7Lower Hay LakeCrow WingMNA18.5 ft100 ft
8Latoka LakeDouglasMNA19 ft108 ft
9Little Birch LakeToddMNA13 ft89 ft
10North Long LakeCrow WingMNA15.1 ft97 ft
11Bad Medicine LakeBeckerMNA25 ft84 ft
12Mud LakeBeckerMNA12.5 ft34 ft
13Big LakeBeltramiMNA9.7 ft35 ft
14Big LakeSherburneMNA13.6 ft48 ft
15Big LakeSt. LouisMNA8.2 ft22 ft
16Big Sugar Bush LakeBeckerMNA16.5 ft42 ft
17Pelican LakeOtter TailMNA16.4 ft55 ft
18Pelican LakeCrow WingMNA14.3 ft104 ft
19Birch LakeCassMNA14 ft45 ft
20Round LakeAitkinMNA14.5 ft125 ft
21Round LakeCrow WingMNA13.5 ft51 ft
22Round LakeCookMNA16.5 ft45 ft
23Round LakeBeckerMNA10 ft69 ft
24Ada LakeCassMNA14 ft60 ft
25Pike LakeCookMNA17.4 ft45 ft
26Whitefish LakeCrow WingMNA14.4 ft138 ft
27Whitefish LakeBeltramiMNA12.5 ft30 ft
28Horseshoe LakeCrow WingMNA14.4 ft56 ft
29Farm LakeLakeMNA5.5 ft56 ft
30Washburn LakeCassMNA14.1 ft111 ft
31Long LakeKandiyohiMNA10.5 ft46 ft
32Long LakeClearwaterMNA20.5 ft80 ft
33Long LakeCassMNA21.5 ft115 ft
34Long LakeBeltramiMNA20 ft87 ft
35Long LakeOtter TailMNA12.3 ft128 ft
36Long LakeBeckerMNA19.5 ft61 ft
37Long LakeHubbardMNA11.2 ft135 ft
38Long LakeOtter TailMNA11.6 ft73 ft
39Long LakeItascaMNA16.9 ft85 ft
40Dead LakeHubbardMNA16 ft34 ft
41Dead LakeOtter TailMNA10.2 ft65 ft
42Unnamed LakeNicolletMNA5.6 ft35 ft
43Maple LakeDouglasMNA14.1 ft78 ft
44Maple LakeItascaMNA15.3 ft39 ft
45West Twin LakeCookMNA9.8 ft37 ft
46Shallow LakeItascaMNA16.4 ft85 ft
47Shallow LakeHubbardMNA8.2 ft10 ft
48Trout LakeItascaMNA18 ft157 ft
49Detroit LakeBeckerMNA14 ft89 ft
50South Sturgeon LakeSt. LouisMNA2.5 ft43 ft

Why Water Quality Matters for Walleye

Walleye prefer lakes with moderate water clarity, clear enough for adequate dissolved oxygen but not so clear that they lose their low-light hunting advantage. Walleye are sensitive to high phosphorus and algae levels, which deplete oxygen in deeper water where walleye seek cool temperatures in summer.

Lakes graded A or B tend to maintain the oxygen levels and water temperatures that walleye need year-round. Lakes graded D or F often experience summer oxygen depletion in deeper water, stressing or killing walleye. For the official marks those waters produced, see state record fish — including the Minnesota walleye record and the Wisconsin list.

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