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LakeQuality
B

Shawano County Lake Quality

Wisconsin, 27 lakes, average grade B (Good)

Shawano County's 27 graded lakes fall in the moderate-density bracket for Wisconsin. The county-level average smooths over real differences — a single agricultural watershed near the southwest corner can pull the average down even if the rest of the county runs clean. The county-wide average lands at B — solid water quality with most lakes carrying clear summer transparency and low-to-moderate phosphorus.

The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Round Lake (A); the most-stressed is Tilleda Off Bridge Lake (F).

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DNR Reports (6)

Wisconsin DNR Fisheries Survey resources for lakes in Shawano County. browse all reports →

All Lakes in Shawano County

RankLakeGradeClarityMax DepthPhosphorus
1Round LakeA29.5 ft39 ft14.8 µg/L
2Big LakeA24.6 ft-15 µg/L
3Pine LakeA32.8 ft35 ft13.6 µg/L
4Beauleau LakeA31.2 ft24 ft-
5Bahr LakeA30.8 ft44 ft17.9 µg/L
6Pensaukee LakeA39.4 ft49 ft-
7Grass LakeA28.7 ft52 ft15.7 µg/L
8Lulu LakeA23 ft13 ft16.4 µg/L
9Koonz LakeA34.5 ft40 ft12 µg/L
10Korth LakeA39.4 ft48 ft13.5 µg/L
11Malone LakeA44.3 ft31 ft16 µg/L
12Sams LakeA36.1 ft-18 µg/L
13Mission LakeA57.4 ft44 ft17 µg/L
14Bealeau LakeA37.7 ft24 ft16 µg/L
15Unknown LakeA16.4 ft-14.8 µg/L
16Long LakeA19.7 ft35 ft22.3 µg/L
17Shawano LakeA19.4 ft39.5 ft29.6 µg/L
18Loon LakeA18 ft22 ft21.5 µg/L
19White LakeB17.6 ft11 ft32.8 µg/L
20White Clay LakeB16.4 ft46 ft31.6 µg/L
21Schoenick Lake atB16.4 ft34 ft45.3 µg/L
22Upper Red LakeB24.6 ft15 ft39.2 µg/L
23Wagner LakeB13.1 ft15 ft52 µg/L
24Eddy by Pony Creek LakeC1.6 ft11 ft1.4 µg/L
25Pella LakeC8.2 ft13 ft63.7 µg/L
26Tilleda PondD-11 ft64.4 µg/L
27Tilleda Off Bridge LakeF1.6 ft11 ft525 µg/L

Source: EPA National Aquatic Resource Surveys, 2026.