What lakes are in the Rainy Lake Watershed?

346 monitored lakes drain through the Rainy Lake Watershed, including Little Wabana Lake, Pike Lake, Long Lake, and others. The watershed spans Minnesota.

What is the cleanest lake in the Rainy Lake Watershed?

Little Wabana Lake in Itasca County is the highest-rated lake in the Rainy Lake Watershed with a Grade A.

What is a HUC8 watershed?

HUC8 (Hydrologic Unit Code, 8-digit) is the USGS classification for "subbasins" — the level at which major named river systems are usually identified. The Rainy Lake Watershed corresponds to HUC8 09030001.

Rainy Lake Watershed

Minnesota · 346 monitored lakes · 96 grade A · 83 grade B · HUC8 09030001

Rainy Lake and the Vermilion River basin draining north into Hudson Bay via the Rainy River and Lake of the Woods — the BWCA borderlands and Voyageurs National Park.

Counties in this watershed

St. Louis, Koochiching, Lake of the Woods, Itasca

Monitored Lakes (346)

#	Lake	County	Grade	Clarity	Area	Depth
1	Little Wabana Lake	Itasca	A	23.8 ft	-	-
2	Pike Lake	St. Louis	A	18 ft	-	-
3	Long Lake	Itasca	A	16.7 ft	-	-
4	Long Lake	Itasca	A	16.9 ft	-	-
5	Maple Lake	Itasca	A	15.3 ft	-	-
6	Sunshine Lake	St. Louis	A	20 ft	-	-
7	Shallow Lake	Itasca	A	16.4 ft	-	-
8	Trout Lake	Itasca	A	15.5 ft	-	-
9	Trout Lake	Itasca	A	18 ft	-	-
10	Clear Lake	Itasca	A	14.9 ft	-	-
11	Bass Lake	Itasca	A	18.2 ft	-	-
12	Eagles Nest Lake	St. Louis	A	15.5 ft	-	-
13	Turtle Lake	Itasca	A	17.1 ft	-	-
14	Mukooda Lake	St. Louis	A	16.6 ft	-	-
15	Pokegama Lake	Itasca	A	16 ft	13.0K acres	-
16	Mcavity Lake	Itasca	A	17 ft	-	-
17	Silver Lake	St. Louis	A	19.3 ft	-	-
18	Caribou Lake	Itasca	A	31 ft	-	-
19	Wabana Lake	Itasca	A	18 ft	2.2K acres	-
20	Hatch Lake	Itasca	A	16.5 ft	-	-
21	North Star Lake	Itasca	A	19 ft	-	-
22	Little Bass Lake	Itasca	A	17.7 ft	-	-
23	Napoleon Lake	Itasca	A	18 ft	-	-
24	Little Trout Lake	Itasca	A	22 ft	-	-
25	Majestic Lake	St. Louis	A	15.7 ft	-	-
26	Schultz Lake	St. Louis	A	15.5 ft	-	-
27	Bluewater Lake	Itasca	A	18.5 ft	-	-
28	Dunning Lake	Itasca	A	18.5 ft	-	-
29	Smith Lake	St. Louis	A	15 ft	220 acres	-
30	Little Armstrong Lake	St. Louis	A	15.5 ft	-	-
31	Little Long Lake	Itasca	A	16 ft	-	-
32	Little Long Lake	St. Louis	A	21 ft	-	-
33	Rose Lake	St. Louis	A	-	-	-
34	Three Island Lake	Itasca	A	29 ft	-	-
35	Burntside Lake	St. Louis	A	16 ft	-	-
36	Mirror Lake	Itasca	A	18 ft	-	-
37	Siseebakwet Lake	Itasca	A	19 ft	-	-
38	Armstrong Lake	St. Louis	A	16.2 ft	-	-
39	Lost Lake	St. Louis	A	23 ft	-	-
40	St James Pit Lake	St. Louis	A	47.6 ft	-	-
41	Majestic Lake	St. Louis	A	17.1 ft	-	-
42	St. Marys Lake	St. Louis	A	16.8 ft	-	-
43	Deep Lake	St. Louis	A	17.2 ft	-	-
44	Johnson Lake	Itasca	A	15.7 ft	-	-
45	Sabin Lake	St. Louis	A	35 ft	-	-
46	St. Mary'S Lake	St. Louis	A	15 ft	-	-
47	Ely Lake	St. Louis	A	16 ft	780 acres	-
48	South Sugar Lake	Itasca	A	15 ft	-	-
49	Cruiser Lake	St. Louis	A	25.4 ft	-	-
50	Big Ole Lake	Itasca	A	21.8 ft	-	-
51	Larson Lake	Itasca	A	21 ft	-	-
52	Ball Club Lake	Itasca	A	16 ft	-	-
53	Pokegama Lake	Itasca	A	17.5 ft	13.0K acres	-
54	Burns Lake	Itasca	A	16.1 ft	-	-
55	Big Island Lake	Itasca	A	16.4 ft	-	-
56	Whitewater Lake	St. Louis	A	15.4 ft	1.2K acres	-
57	O'Reilly Lake	Itasca	A	16 ft	-	-
58	Gale Lake	Itasca	A	17.1 ft	-	-
59	Superior Lake	St. Louis	A	-	-	-
60	Iron Chief Complex Lake	St. Louis	A	24.5 ft	-	-
61	Little Jay Gould Lake	Itasca	A	21.5 ft	-	-
62	Leighton Lake	Itasca	A	21.7 ft	-	-
63	Chase Lake	Itasca	A	21.7 ft	-	-
64	Little Sandy Lake	St. Louis	A	-	-	-
65	Suseq32a Lake	St. Louis	A	-	-	-
66	Seq032a Lake	St. Louis	A	-	-	-
67	Ames Lake	Itasca	A	10 ft	-	-
68	Joe Martin Lake	St. Louis	A	14.5 ft	-	-
69	Deer Lake	Itasca	A	13.1 ft	4.0K acres	-
70	Five Island Lake	Itasca	A	13 ft	-	-
71	Sand Lake	Itasca	A	13 ft	-	-
72	Island Lake	St. Louis	A	14.5 ft	-	-
73	Pickerel Lake	Itasca	A	10.2 ft	-	-
74	George Lake	St. Louis	A	14.3 ft	-	-
75	Swan Lake	Itasca	A	13.5 ft	-	-
76	Rush Island Lake	Itasca	A	10.8 ft	-	-
77	Pleasant Lake	St. Louis	A	10 ft	-	-
78	Little Trout Lake	St. Louis	A	20.3 ft	-	-
79	Perch Lake	St. Louis	A	13.5 ft	-	-
80	Side Lake	St. Louis	A	11 ft	-	-
81	Trestle Lake	Itasca	A	14.8 ft	-	-
82	White Lake	St. Louis	A	11.5 ft	-	-
83	Sturgeon Lake	St. Louis	A	13.8 ft	2.0K acres	-
84	Beatrice Lake	Itasca	A	10.5 ft	-	-
85	Bello Lake	Itasca	A	13.1 ft	-	-
86	Dodo Lake	St. Louis	A	13 ft	-	-
87	Gunn Lake	Itasca	A	14.3 ft	-	-
88	Busties Lake	Itasca	A	10.3 ft	230 acres	-
89	Little Whitefish Lake	Itasca	A	11.5 ft	-	-
90	Cadotte Lake	St. Louis	A	10.2 ft	-	-
91	Jack the Horse Lake	Itasca	A	11.6 ft	-	-
92	Coon-Sandwick Lake	Itasca	A	10.7 ft	-	-
93	Bear Head Lake	St. Louis	A	11 ft	-	-
94	Sandwick Lake	Itasca	A	11.6 ft	-	-
95	Anne Lake	St. Louis	A	14.4 ft	-	-
96	Mead Lake	Itasca	A	10.7 ft	-	-
97	Alice Lake	Itasca	B	8.5 ft	-	-
98	Sugar Lake	Itasca	B	7 ft	67 acres	-
99	Quill Lake	St. Louis	B	11.5 ft	-	-
100	Loiten Lake	St. Louis	B	11.5 ft	-	-

Showing top 100 of 346 lakes by water quality grade.

All watersheds →All Minnesota lakes →

Source: EPA National Aquatic Resource Surveys, 2026.