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LakeQuality

Best Lakes for Swimming Near Duluth

Minnesota

30 swimming lakes within driving distance of Duluth, Minnesota, ranked by water quality and swimming-specific filters. Filtered for grade A or B water quality, low algae (chlorophyll-a under 15 µg/L), and public access. Always check local advisories on the day you swim.

Duluth sits in a lake-rich part of the upper Midwest: 30 graded lakes within reach, average grade B. Superior Lake (A) leads the cluster.

The swimming-specific ranking layered on top of the LakeGrade rubric is what produces the list below: a grade-good lake that does not also support the swimming use case is less useful than a grade-decent lake that does.

#LakeCountyGradeDistanceClarityDepth
1Superior LakeSt. LouisA3.3 mi--
2Suseq32a LakeSt. LouisA5.1 mi--
3Seq032a LakeSt. LouisA5.1 mi--
4Lk Superior 3.3 Mi E of Superior LakeDouglasA9.4 mi--
5Pike LakeSt. LouisA11 mi18 ft-
6Sunshine LakeSt. LouisA13.3 mi20 ft-
7Schultz LakeSt. LouisA14.4 mi15.5 ft-
8Lk Superior .09 Mi N of Poplar Creek Mouth LakeDouglasA15.7 mi--
9Su22b LakeDouglasA16.6 mi--
10Smith LakeSt. LouisA26.8 mi15 ft-
11Rose LakeSt. LouisA26.8 mi--
12Joe Martin LakeSt. LouisA28.3 mi14.5 ft-
13Dodo LakeSt. LouisA26.4 mi13 ft-
14Third LakeCarltonB19.7 mi8.5 ft-
15Pat Martin LakeCarltonB21.1 mi6.6 ft-
16Big LakeCarltonB25.7 mi9.1 ft-
17Caribou LakeSt. LouisB12.5 mi10.5 ft-
18Lk Superior LakeDouglasB13.1 mi--
19Lk Superior .05 Mi N of Pearson Creek Mouth LakeDouglasB18.3 mi--
20Chub LakeCarltonB20.5 mi13.3 ft-
21Lake NebagamonDouglasB27 mi7 ft-
22Lac LakeCarltonB28.3 mi9.5 ft-
23Park LakeCarltonB28.5 mi7 ft-
24Aerie LakeSt. LouisB29.4 mi11.5 ft-
25Loon LakeSt. LouisB29.6 mi6.6 ft-
26West Twin LakeSt. LouisB23.2 mi6.2 ft-
27Lost LakeSt. LouisB26.2 mi5.8 ft-
28Sofie LakeCarltonB26.5 mi4.9 ft-
29Twin LakeSt. LouisB15 mi3.6 ft-
30Lake MinnesuingDouglasB27.5 mi6.2 ft-

Other activities near Duluth

Source: EPA National Aquatic Resource Surveys, 2026.