Grade D Lakes — Poor

406 lakes (11% of all graded lakes)

406

Total Lakes

324

Minnesota

Wisconsin

Lake	County	State	Clarity	Depth	Fish
Goose Lake	Goodhue	MN	42.3 ft	—	0
Red Rock Lake	Hennepin	MN	2.8 ft	16 ft	9
Swamp Lake	Chisago	MN	1.6 ft	—	0
Mandall Lake	Chisago	MN	3 ft	26 ft	5
Scotch Lake	Le Sueur	MN	4.1 ft	11 ft	5
Lower Pigeon Lake	Itasca	MN	4.2 ft	—	0
Dutchman Lake Deep	Cook	MN	2.3 ft	—	0
Clear Lake 1	Goodhue	MN	45.1 ft	—	0
Kabetogama Lake	St. Louis	MN	4.4 ft	80 ft	16
Rainy Lake	Koochiching	MN	3.6 ft	161 ft	17
Little Shoepack Lake	St. Louis	MN	6.2 ft	25 ft	3
Kabetogama Lake	St. Louis	MN	3.8 ft	80 ft	16
Rainy Lake	St. Louis	MN	5.9 ft	161 ft	17
Kabetogama Lake	St. Louis	MN	4.8 ft	80 ft	16
Kabetogama Lake	St. Louis	MN	5.9 ft	80 ft	16
Agnes Lake	St. Louis	MN	5.2 ft	18 ft	4
Sand Point Lake	St. Louis	MN	6.6 ft	184 ft	21
Quarter Line Lake	St. Louis	MN	4.6 ft	22 ft	3
Rainy Lake	Koochiching	MN	6.6 ft	161 ft	17
Rainy Lake	Koochiching	MN	4.9 ft	161 ft	17
Rainy Lake	Koochiching	MN	3.6 ft	161 ft	17
Sand Point Lake	St. Louis	MN	5.9 ft	184 ft	21
Rainy Lake	Koochiching	MN	5.2 ft	161 ft	17
Crane Lake	St. Louis	MN	6.6 ft	80 ft	12
Namakan Lake	St. Louis	MN	4.1 ft	150 ft	18
Kabetogama Lake	St. Louis	MN	5.9 ft	80 ft	16
Rays Lake	Le Sueur	MN	3.6 ft	32 ft	15
Mud Lake	Crow Wing	MN	4 ft	28 ft	11
Mud Lake	Kandiyohi	MN	6.2 ft	14 ft	13
Big Lake	Mahnomen	MN	2.1 ft	—	0
Round Lake	Itasca	MN	5.6 ft	24 ft	17
Ada Lake	Cook	MN	5.5 ft	13 ft	0
Horseshoe Lake	Aitkin	MN	3.5 ft	12 ft	12
Long Lake	Stearns	MN	2.5 ft	35 ft	23
Long Lake	Hennepin	MN	3.1 ft	33 ft	14
Long Lake	Pine	MN	5.7 ft	24 ft	13
Long Lake	Otter Tail	MN	3 ft	—	13
Unnamed Lake	Hennepin	MN	2.6 ft	—	0
Unnamed Lake	Becker	MN	3.5 ft	—	0
Unnamed Lake	Otter Tail	MN	4.9 ft	—	0
Unnamed Lake	Grant	MN	3.6 ft	—	0
Unnamed Lake	Big Stone	MN	6.9 ft	—	0
Unnamed Lake	Polk	MN	2.6 ft	—	0
Unnamed Lake	Washington	MN	1.6 ft	60 ft	12
Unnamed Lake	Pope	MN	3.6 ft	—	0
Unnamed Lake	Stearns	MN	3.4 ft	—	0
Unnamed Lake	Polk	MN	6.9 ft	12 ft	0
Cokato Lake	Wright	MN	6 ft	52 ft	20
East Vermilion Lake	St. Louis	MN	6.5 ft	76 ft	17
Deer Lake	Wright	MN	5 ft	27 ft	17
Twin Lake	Hennepin	MN	5.9 ft	44 ft	13
Twin Lake	Crow Wing	MN	5 ft	30 ft	13
Eddy Lake	Carlton	MN	3.5 ft	37 ft	13
Lower Lawrence Lake	Itasca	MN	4.5 ft	34 ft	0
Clear Lake	Otter Tail	MN	6.3 ft	29 ft	13
One Pine Lake	St. Louis	MN	4 ft	13 ft	13
Prairie Lake	Itasca	MN	5 ft	—	0
Prairie Lake	St. Louis	MN	4.8 ft	47 ft	15
Marion Lake	McLeod	MN	—	15.2 ft	13
Bear Lake	Stearns	MN	6 ft	—	0
Bear Lake	St. Louis	MN	3.3 ft	—	0
Sullivan Lake	Wright	MN	6 ft	58 ft	11
Eagle Lake	Wright	MN	6.6 ft	38 ft	14
South Farm Lake	Lake	MN	5 ft	31 ft	11
Curtis Lake	Yellow Medicine	MN	4 ft	8 ft	0
Zumbro Lake	Olmsted	MN	3.9 ft	43 ft	24
Star Lake	Cook	MN	4.9 ft	13 ft	5
Bennett Lake	Ramsey	MN	5.2 ft	9 ft	8
Fish Lake	Pine	MN	6 ft	18 ft	0
Fish Lake	Wright	MN	3.3 ft	38 ft	17
Whaletail Lake	Hennepin	MN	3.3 ft	22 ft	13
Norway Lake	Kandiyohi	MN	3 ft	42 ft	15
Square Lake	Lake	MN	5.5 ft	7 ft	7
Tamarack Lake	Carlton	MN	5 ft	48 ft	15
Crow Wing Lake	Crow Wing	MN	6 ft	26 ft	15
Bass Lake	Aitkin	MN	5 ft	58 ft	0
Bass Lake	St. Louis	MN	4.2 ft	—	0
Island Lake	Ramsey	MN	3.8 ft	—	0
Portage Lake	Aitkin	MN	4.5 ft	18 ft	11
Cedar Lake	Hennepin	MN	4.7 ft	51 ft	15
Emily Lake	Ramsey	MN	3.7 ft	—	3
Emily Lake	Crow Wing	MN	3 ft	13 ft	13
Virginia Lake	Carver	MN	6 ft	34 ft	15
Barrett Lake	Grant	MN	4 ft	28 ft	23
Rice Lake	Stearns	MN	2.6 ft	41 ft	21
Mitchell Lake	Hennepin	MN	3 ft	19 ft	12
Pickerel Lake	Dakota	MN	3.6 ft	11 ft	15
Pickerel Lake	Anoka	MN	5 ft	—	0
Mcguire Lake	Itasca	MN	6 ft	—	0
Bingham Lake	Cottonwood	MN	4 ft	10 ft	8
Del Clark Lake	Yellow Medicine	MN	5 ft	30 ft	14
Peterson Lake	Otter Tail	MN	5.9 ft	69 ft	16
Silver Lake	Ramsey	MN	4 ft	47 ft	12
Blind Lake	Aitkin	MN	5.5 ft	17 ft	12
Homer Lake	Cook	MN	6 ft	22 ft	9
Minnewawa Lake	Aitkin	MN	5.2 ft	21 ft	15
Tyson Lake	Yellow Medicine	MN	4.5 ft	8 ft	8
Sewell Lake	Otter Tail	MN	5.5 ft	52 ft	13
Mill Pond	Scott	MN	6 ft	18 ft	11
Mary Lake	Wright	MN	5.5 ft	102 ft	13

Showing 100 of 406 Grade D lakes.

Frequently Asked Questions

How many lakes have a grade of D?

There are 406 Grade D (Poor) lakes in Minnesota and Wisconsin — 324 in Minnesota and 82 in Wisconsin. This represents 11% of all graded lakes.

What does a Grade D mean?

Grade D means poor water quality with murky water (3-7 ft visibility), high phosphorus, and frequent algae. Swimming is not recommended. Fish diversity is limited.