Grade B Lakes — Good

776 lakes (21% of all graded lakes)

776

Total Lakes

533

Minnesota

243

Wisconsin

Lake	County	State	Clarity	Depth	Fish
Horseshoe Lake	Cass	MN	8.9 ft	12 ft	0
Long Lake	Stearns	MN	13 ft	28 ft	5
Unnamed Lake	Sherburne	MN	13.5 ft	43 ft	7
West Twin Lake	St. Louis	MN	13.3 ft	18 ft	7
Fish Lake	Chisago	MN	9.7 ft	57 ft	13
Leech Lake	Cass	MN	12.5 ft	—	0
Silver Lake	Cass	MN	13 ft	20 ft	5
Little Big Lake	Beltrami	MN	9.3 ft	35 ft	17
East Twin Lake	Anoka	MN	10.7 ft	68 ft	12
Alice Lake	Itasca	MN	8.5 ft	65 ft	12
O'Brien Lake	Dakota	MN	19.7 ft	—	0
Sugar Lake	Itasca	MN	7 ft	22 ft	13
Blooms Lake	Chisago	MN	6.9 ft	41 ft	0
North Lindstrom Lake	Chisago	MN	7.2 ft	29 ft	13
Swift Lake	Cass	MN	7.5 ft	52 ft	13
Steamboat Bay Lake	Cass	MN	9.8 ft	150 ft	18
Ml-Nw Lake	Aitkin	MN	18.8 ft	42 ft	21
Ml-Ce Lake	Aitkin	MN	25.6 ft	42 ft	21
Ml-Se Lake	Mille Lacs	MN	24.2 ft	42 ft	21
Ml-Nshore Lake	Aitkin	MN	21.5 ft	42 ft	21
Ml-Ne Lake	Aitkin	MN	24.2 ft	42 ft	21
Upper Sucker Lake	Cass	MN	10.8 ft	25 ft	12
Six Mile Lake	Cass	MN	11.5 ft	68 ft	16
Sunrise Lake	Chisago	MN	7.7 ft	21 ft	10
Spring Lake	Sawyer	WI	29.2 ft	18 ft	4
Chippewa Flowage Lake	Sawyer	WI	23.6 ft	92 ft	8
Pike Lake	Sawyer	WI	24.9 ft	17 ft	3
Chippewa Flowage -Pokegema Lake	Sawyer	WI	19 ft	92 ft	8
Quill Lake	St. Louis	MN	11.5 ft	46 ft	4
Loiten Lake	St. Louis	MN	11.5 ft	49 ft	3
O'Leary Lake	St. Louis	MN	10.7 ft	52 ft	9
Beast Lake	St. Louis	MN	10.2 ft	66 ft	2
Lobster Lake	Douglas	MN	13 ft	65 ft	18
Big Birch Lake	Todd	MN	13 ft	81 ft	18
Clearwater Lake	Wright	MN	10.2 ft	73 ft	17
Mud Lake	Becker	MN	11.5 ft	34 ft	16
Big Lake	Beltrami	MN	9.5 ft	35 ft	17
Pelican Lake	Stearns	MN	13.5 ft	46 ft	14
Round Lake	Aitkin	MN	14.5 ft	27 ft	11
Round Lake	Anoka	MN	8.2 ft	—	0
Horseshoe Lake	Todd	MN	10 ft	24 ft	11
Horseshoe Lake	Isanti	MN	3.6 ft	—	0
Horseshoe Lake	Itasca	MN	10.5 ft	25 ft	13
Cotton Lake	Becker	MN	11.5 ft	28 ft	15
Long Lake	Todd	MN	10 ft	63 ft	16
Long Lake	St. Louis	MN	13.5 ft	33 ft	8
Long Lake	Todd	MN	14 ft	—	0
Long Lake	Aitkin	MN	10.8 ft	116 ft	16
Long Lake	Stearns	MN	13.6 ft	46 ft	11
Unnamed Lake	St. Louis	MN	11.5 ft	—	0
Unnamed Lake	Stearns	MN	11 ft	—	0
Unnamed Lake	Itasca	MN	13 ft	53 ft	9
Unnamed Lake	Crow Wing	MN	14.1 ft	—	0
Unnamed Lake	Blue Earth	MN	—	—	0
West Twin Lake	Cook	MN	9.8 ft	37 ft	2
Shallow Lake	Hubbard	MN	8.2 ft	10 ft	13
Tonseth Lake	Otter Tail	MN	10 ft	27 ft	12
Jordan Lake	Lake	MN	10 ft	66 ft	0
Sallie Lake	Becker	MN	12.2 ft	50 ft	16
Deer Lake	Otter Tail	MN	11.5 ft	26 ft	16
Deer Lake	Itasca	MN	8.5 ft	50 ft	15
Twin Lake	Crow Wing	MN	13.5 ft	—	0
Fraser Lake	Lake	MN	11 ft	105 ft	0
Otter Lake	Stearns	MN	9 ft	51 ft	13
Otter Lake	Ramsey	MN	11.7 ft	21 ft	12
Lida Lake	Otter Tail	MN	13.5 ft	58 ft	20
Mccarron Lake	Ramsey	MN	11.5 ft	57 ft	13
Pirz Lake	Stearns	MN	11.2 ft	—	0
Florida Lake	Kandiyohi	MN	12.5 ft	40 ft	18
Clear Lake	St. Louis	MN	10.8 ft	24 ft	9
Prairie Lake	Otter Tail	MN	8.9 ft	22 ft	15
Eagle Lake	Crow Wing	MN	9.5 ft	—	0
Kenney Lake	Crow Wing	MN	13.5 ft	55 ft	0
Ida Lake	Becker	MN	11.2 ft	20 ft	14
Carnelian Lake	Stearns	MN	12.5 ft	36 ft	13
Sand Lake	Pine	MN	10 ft	47 ft	15
Hook Lake	Otter Tail	MN	10.5 ft	—	0
Snail Lake	Ramsey	MN	11 ft	30 ft	11
Bachelor Lake	Aitkin	MN	14.5 ft	47 ft	11
Bass Lake	Itasca	MN	13.5 ft	76 ft	19
Bass Lake	Becker	MN	7.9 ft	28 ft	9
Island Lake	Becker	MN	14.6 ft	38 ft	15
East Smith Lake	Itasca	MN	12 ft	38 ft	5
Moose Lake	Carlton	MN	10 ft	67 ft	10
Moose Lake	Lake	MN	13 ft	65 ft	10
Moose Lake	Itasca	MN	11.5 ft	61 ft	17
Crooked Lake	Douglas	MN	14 ft	35 ft	12
Portage Lake	Lake	MN	13.3 ft	45 ft	0
Portage Lake	Cook	MN	8.5 ft	55 ft	3
Portage Lake	Cass	MN	12 ft	65 ft	13
Mille Lacs Lake	Aitkin	MN	10.5 ft	42 ft	21
Cedar Lake	Wright	MN	13.6 ft	47 ft	11
Ima Lake	Lake	MN	11 ft	116 ft	0
Kidney Lake	Cass	MN	11.5 ft	55 ft	0
Turtle Lake	Douglas	MN	10.5 ft	21 ft	12
Turtle Lake	Beltrami	MN	9.5 ft	45 ft	16
Turtle Lake	Todd	MN	12 ft	39 ft	18
Rice Lake	Itasca	MN	13.8 ft	68 ft	14
Spider Lake	Itasca	MN	10 ft	36 ft	14
Thompson Lake	Sherburne	MN	10 ft	22 ft	0

Showing 100 of 776 Grade B lakes.

Frequently Asked Questions

How many lakes have a grade of B?

There are 776 Grade B (Good) lakes in Minnesota and Wisconsin — 533 in Minnesota and 243 in Wisconsin. This represents 21% of all graded lakes.

What does a Grade B mean?

Grade B means good water quality with clear water (Secchi depth 10-15 ft), low phosphorus (20-30 µg/L), and low algae. Safe for swimming and supports diverse fisheries.