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LakeQuality
C

Chisago County Lake Quality

Minnesota, 31 lakes, average grade C (Fair)

There are 31 graded lakes in Chisago County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. Chisago County averages to a C. The distribution behind that average matters more than the letter: a few stressed lakes versus many decent ones can produce the same average as the inverse.

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 Stauffer Lake (A); the most-stressed is Pioneer Lake (F).

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DNR Reports (50)

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

All Lakes in Chisago County

RankLakeGradeClarityMax DepthPhosphorus
1Stauffer LakeA14.1 ft-11.5 µg/L
2Fish LakeB9.7 ft57 ft15 µg/L
3Blooms LakeB6.9 ft41 ft19 µg/L
4North Lindstrom LakeB7.2 ft29 ft18 µg/L
5Sunrise LakeB7.7 ft21 ft14.7 µg/L
6School LakeB7.9 ft-20 µg/L
7Little Horseshoe LakeB7.9 ft43 ft16 µg/L
8Chain LakeB5.9 ft-16 µg/L
9Spider LakeB6.5 ft9 ft23.5 µg/L
10South Lindstrom LakeB5.2 ft34 ft28 µg/L
11Mattson LakeB3.9 ft-16 µg/L
12Comfort LakeB7 ft47 ft28.5 µg/L
13Horseshoe LakeC4.6 ft53 ft28.5 µg/L
14Green LakeC6 ft32 ft26 µg/L
15Kroon LakeC5.9 ft30 ft23 µg/L
16Goose LakeC4.5 ft55 ft33 µg/L
17South Center LakeC4.9 ft109 ft29 µg/L
18Chisago LakeC4 ft34 ft32 µg/L
19North Center LakeC3.5 ft46 ft40 µg/L
20Swamp LakeD1.6 ft-41 µg/L
21Mandall LakeD3 ft26 ft57.5 µg/L
22Ogrens LakeD2.6 ft41 ft61.5 µg/L
23Rabour LakeD3 ft43 ft54 µg/L
24Third LakeD5.5 ft--
25Little LakeD3 ft23 ft68 µg/L
26Rush LakeD3 ft24 ft61 µg/L
27Linn LakeD1.6 ft15 ft78.5 µg/L
28Emily LakeF1.6 ft-155 µg/L
29Wallmark LakeF1.6 ft-115 µg/L
30Pioneer LakeF2 ft8 ft110 µg/L
31Fourth LakeF--120 µg/L

Source: EPA National Aquatic Resource Surveys, 2026.