Clearest Lakes in Minnesota & Wisconsin

The 50 lakes with the deepest Secchi depth visibility, how far you can see down into the water. Measured in feet using a black-and-white Secchi disk lowered from the surface.

Rank	Lake	County	State	Clarity	Grade	Max Depth
1	Adams Lake	Vilas	WI	328.1 ft	A	-
2	Sturgeon Lake 2	Goodhue	MN	134.5 ft	C	-
3	Clear Lake 2	Goodhue	MN	131.2 ft	C	-
4	North Lake 2	Goodhue	MN	123.5 ft	C	-
5	Clear Lake	Rock	WI	123 ft	A	-
6	Wazee Lake	Jackson	WI	105.8 ft	A	350 ft
7	North Lake 1	Goodhue	MN	100.1 ft	C	-
8	Sturgeon Lake 1	Goodhue	MN	93.7 ft	C	-
9	Black Oak Lake	Vilas	WI	88.6 ft	A	85 ft
10	Bardon Lake	Douglas	WI	88.6 ft	A	102 ft
11	Whitefish Lake	Douglas	WI	86.9 ft	A	102 ft
12	Sealion Lake	Florence	WI	84 ft	A	-
13	Pine Lake	Waukesha	WI	82 ft	A	85 ft
14	Whitefish Lake	Douglas	WI	82 ft	A	102 ft
15	Crystal Lake	Oneida	WI	82 ft	A	43 ft
16	Maiden Lake	Oconto	WI	80.4 ft	A	52 ft
17	Lily Lake	Marinette	WI	78.7 ft	A	-
18	Lake Owen	Bayfield	WI	78.7 ft	A	95 ft
19	Big Hurst Lake	Vilas	WI	78.7 ft	A	44 ft
20	Clara Lake-Deep Hole	Lincoln	WI	78.1 ft	A	50 ft
21	Stone Lake	Washburn	WI	75.5 ft	A	49 ft
22	Millicent Lake	Bayfield	WI	75.5 ft	A	-
23	Roach Lake	Vilas	WI	75.5 ft	A	48 ft
24	Blue Lake	Oneida	WI	73.8 ft	A	49 ft
25	Lake Metonga	Forest	WI	72.2 ft	A	79 ft
26	Forest Lake	Vilas	WI	72.2 ft	A	60 ft
27	Fountain Lake	Portage	WI	72.2 ft	A	-
28	Wheeler Lake	Oconto	WI	72.2 ft	A	-
29	Lee Lake	Oneida	WI	71.4 ft	A	44 ft
30	Buskey Bay Lake	Bayfield	WI	70.9 ft	A	51 ft
31	Hart Lake	Bayfield	WI	70.5 ft	A	54 ft
32	Long Lake	Burnett	WI	68.9 ft	A	41 ft
33	Anderson Lake	Vilas	WI	68.9 ft	A	63 ft
34	Keyes Lake	Florence	WI	68.9 ft	A	-
35	Hasbrook Lake	Oneida	WI	68.9 ft	A	50 ft
36	Mary Lake	Lincoln	WI	68.9 ft	A	42 ft
37	Ebert Lake	Portage	WI	68.9 ft	A	-
38	Carlin Lake	Vilas	WI	68.9 ft	A	36 ft
39	Sea Lion Lake	Florence	WI	68.9 ft	A	82 ft
40	Rock River Lake	Rock	WI	68.9 ft	A	-
41	Lower Pine Lake	Polk	WI	68.9 ft	A	102 ft
42	Round Lake	Sawyer	WI	68.2 ft	A	74 ft
43	Boot Lake	Oconto	WI	67.3 ft	A	38 ft
44	Lake Anna	Florence	WI	67.3 ft	A	61 ft
45	Squaw Smith Lake	Beltrami	MN	65.6 ft	A	-
46	Sand Lake	Polk	WI	65.6 ft	A	-
47	Beasley Lake	Waupaca	WI	65.6 ft	A	47 ft
48	Paya Lake	Oconto	WI	65.6 ft	A	40 ft
49	White Sand Lake	Vilas	WI	65.6 ft	A	71 ft
50	Pearl Lake	Waushara	WI	65.6 ft	A	45 ft

Cleanest Lakes →Worst Water Quality →Improving →Declining →Best Fishing →