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B

Sawyer County Lake Quality

Wisconsin, 50 lakes, average grade B (Good)

Sawyer County has 50 graded lakes, enough that within-county variation matters as much as the county average. Some are deep glacial basins, others are shallow agricultural-watershed waters, and the grade distribution reflects that mix. The county-wide average lands at B — solid water quality with most lakes carrying clear summer transparency and low-to-moderate phosphorus.

A meaningful share of Sawyer's lakes break 50 feet of depth, which matters because deep lakes hold cooler water all summer and resist the resuspended-sediment problems that plague shallow basins. The county's best-graded lake is Round Lake (A).

Reviewed by LakeQuality Editorial Team · Updated
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DNR Reports (20)

Wisconsin DNR Fisheries Survey resources for lakes in Sawyer County. Showing 12 most recent — browse all reports →

All Lakes in Sawyer County

RankLakeGradeClarityMax DepthPhosphorus
1Round LakeA21.1 ft74 ft14.4 µg/L
2Clear LakeA17 ft32 ft11.2 µg/L
3Little Round LakeA17.3 ft38 ft12 µg/L
4Osprey LakeA16 ft-14 µg/L
5Grindstone LakeA17.4 ft60 ft14.4 µg/L
6Lake PlacidA15 ft30 ft12.2 µg/L
7Billy Boy Flowage LakeA-46 ft15 µg/L
8Lac Courte Oreilles LakeA12.2 ft90 ft16 µg/L
9Whitefish LakeA13.5 ft105 ft13.6 µg/L
10Christner LakeA12 ft16 ft19.5 µg/L
11Ashegon LakeA10.5 ft56 ft18 µg/L
12Blueberry LakeA14.8 ft29 ft17 µg/L
13Lost LakeA10.6 ft13 ft18 µg/L
14Spider LakeA10.5 ft64 ft14.1 µg/L
15Mud LakeA10 ft15 ft19 µg/L
16Tiger Cat Flowage LakeA10.8 ft30 ft13.5 µg/L
17Windigo LakeA11 ft51 ft15.6 µg/L
18Little Sissabagama LakeA12.2 ft75 ft14.7 µg/L
19Connors LakeA11 ft-13.8 µg/L
20Lost Land LakeA10 ft21 ft17.2 µg/L
21Barber LakeA10.3 ft21 ft14 µg/L
22Burns LakeA11.5 ft9 ft12.7 µg/L
23Mcclaine LakeA14.2 ft15 ft12.5 µg/L
24Little Lac Courte Oreilles LakeB12 ft46 ft21 µg/L
25Sand LakeB9.9 ft50 ft23.8 µg/L
26Gurno LakeB10 ft27 ft27 µg/L
27Callahan LakeB10.6 ft18 ft22.3 µg/L
28Lake of the PinesB8 ft-16.8 µg/L
29Durphee LakeB8.1 ft-22 µg/L
30Teal LakeB6.6 ft31 ft16.5 µg/L
31Little Lac Courte LakeB12.3 ft46 ft-
32Sissabagama LakeB8.2 ft48 ft18.7 µg/L
33Indian School LakeB-6 ft24.1 µg/L
34Chippewa Flowage LakeB6.9 ft92 ft29 µg/L
35Indian LakeB6.5 ft9 ft23 µg/L
36Pike LakeB7.6 ft17 ft25 µg/L
37Spring LakeB8.9 ft18 ft27.5 µg/L
38Chippewa Flowage -Pokegema LakeC5.8 ft92 ft29 µg/L
39Nelson LakeC5 ft-23.9 µg/L
40Green LakeC4.7 ft9 ft36 µg/L
41Chippewa Flowage -North of Cranberry Bars LakeC4.9 ft92 ft37 µg/L
42Chippewa Flowage -Moore'S Bay LakeC4.1 ft92 ft40 µg/L
43Lower Clam LakeC5.5 ft30 ft29.5 µg/L
44Chippewa Flowage -Winter Dam LakeC4.4 ft92 ft49 µg/L
45Lake Chetac North BasinC-26 ft56.7 µg/L
46Moose LakeC2 ft21 ft28.9 µg/L
47Smith LakeD6 ft29 ft-
48Birch LakeD-73 ft60.3 µg/L
49Lake ChetacD-26 ft68.8 µg/L

Source: EPA National Aquatic Resource Surveys, 2026.