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LakeQuality
C

Stearns County Lake Quality

Minnesota, 55 lakes, average grade C (Fair)

Stearns County in Minnesota carries 55 graded lakes — one of the lake-richer counties in our dataset. Coverage that dense usually reflects active lake-association sampling alongside state-agency monitoring. The county average is C — the middle of the rubric, with one or two lakes pulling the average up or down depending on year.

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. Crooked Lake (A) is the cleanest in the county.

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DNR Reports (128)

Minnesota DNR LakeFinder resources for lakes in Stearns County. Showing 12 most recent — browse all reports →

All Lakes in Stearns County

RankLakeGradeClarityMax DepthPhosphorus
1Crooked LakeA15 ft35 ft14 µg/L
2Big Watab LakeA20.5 ft123 ft-
3Kreighle LakeA18 ft66 ft-
4Big Fish LakeA20.7 ft70 ft9 µg/L
5Sagatagan LakeA17 ft42 ft-
6Big Spunk LakeA10 ft38 ft14 µg/L
7Watab LakeA10.5 ft54 ft5 µg/L
8Long LakeB13 ft28 ft17 µg/L
9Pelican LakeB13.5 ft46 ft-
10Long LakeB13.6 ft46 ft-
11Unnamed LakeB11 ft--
12Otter LakeB9 ft51 ft18 µg/L
13Pirz LakeB11.2 ft-25 µg/L
14Carnelian LakeB12.5 ft36 ft-
15Sylvia LakeB10 ft56 ft-
16Middle Spunk LakeB12 ft81 ft-
17Pleasant LakeB13 ft33 ft-
18Two Rivers LakeB11.2 ft63 ft-
19Ochotto LakeB13.1 ft40 ft-
20School Section LakeB9.8 ft14 ft14 µg/L
21Schneider LakeB19.7 ft52 ft59 µg/L
22Big LakeB6.9 ft42 ft26 µg/L
23Kraemer LakeB6.9 ft30 ft22 µg/L
24George LakeB7.3 ft32 ft23 µg/L
25Grand LakeB8 ft34 ft27 µg/L
26Koronis LakeC6 ft132 ft26 µg/L
27Black Oak LakeC9.5 ft19 ft-
28Kings LakeC7.4 ft44 ft45 µg/L
29Lower Spunk LakeC9.5 ft27.5 ft-
30Augusta LakeC5.3 ft82 ft25 µg/L
31Warner LakeC4 ft38 ft23 µg/L
32Bolfing LakeC7.6 ft36 ft56 µg/L
33Sauk LakeC3.5 ft61 ft49 µg/L
34Louisa LakeC5.2 ft44 ft55 µg/L
35Pearl LakeC3.9 ft17 ft34 µg/L
36Long LakeD2.5 ft35 ft57.5 µg/L
37Unnamed LakeD3.4 ft--
38Bear LakeD6 ft--
39Rice LakeD2.6 ft41 ft49 µg/L
40Goodners LakeD5 ft24 ft71 µg/L
41North Brown'S LakeD4 ft41 ft61 µg/L
42Cedar Island LakeD4 ft75 ft60.5 µg/L
43Great Northern LakeD4 ft16.2 ft-
44Becker LakeD5.7 ft20 ft-
45Marie LakeD3.9 ft36 ft73 µg/L
46Mccormic LakeD--67 µg/L
47Horseshoe LakeD4 ft57 ft120 µg/L
48Mud LakeF3 ft20 ft166 µg/L
49Sand LakeF2.5 ft15 ft-
50Zumwalde LakeF2.3 ft23 ft-
51Krays LakeF3 ft40 ft150 µg/L
52Knaus LakeF2.5 ft20 ft126 µg/L
53Uhlenkolts LakeF0.7 ft18 ft187 µg/L
54Henry LakeF0.5 ft--
55Eden LakeF3 ft77 ft179.5 µg/L

Source: EPA National Aquatic Resource Surveys, 2026.