The Clearest Lake in Every County

For each of 143 counties in Minnesota and Wisconsin, here is the single lake with the highest water clarity, measured by Secchi depth in feet. The clearest lakes have visibility exceeding 30 feet, while the murkiest county champions may only reach 3-4 feet.

Rank	County	State	Clearest Lake	Clarity	Grade
1	Vilas	WI	Adams Lake	328.1 ft	A
2	Goodhue	MN	Sturgeon Lake 2	134.5 ft	C
3	Rock	WI	Clear Lake	123 ft	A
4	Jackson	WI	Wazee Lake	105.8 ft	A
5	Douglas	WI	Bardon Lake	88.6 ft	A
6	Florence	WI	Sealion Lake	84 ft	A
7	Waukesha	WI	Pine Lake	82 ft	A
8	Oneida	WI	Crystal Lake	82 ft	A
9	Oconto	WI	Maiden Lake	80.4 ft	A
10	Marinette	WI	Lily Lake	78.7 ft	A
11	Bayfield	WI	Lake Owen	78.7 ft	A
12	Lincoln	WI	Clara Lake-Deep Hole	78.1 ft	A
13	Washburn	WI	Stone Lake	75.5 ft	A
14	Forest	WI	Lake Metonga	72.2 ft	A
15	Portage	WI	Fountain Lake	72.2 ft	A
16	Burnett	WI	Long Lake	68.9 ft	A
17	Polk	WI	Lower Pine Lake	68.9 ft	A
18	Sawyer	WI	Round Lake	68.2 ft	A
19	Waushara	WI	Pearl Lake	65.6 ft	A
20	Waupaca	WI	Beasley Lake	65.6 ft	A
21	Beltrami	MN	Squaw Smith Lake	65.6 ft	A
22	Sheboygan	WI	Crystal Lake	64.6 ft	A
23	Langlade	WI	Big Twin Lake	64 ft	A
24	Marquette	WI	White Lake	59.1 ft	A
25	Shawano	WI	Mission Lake	57.4 ft	A
26	Itasca	MN	Pokegama Lake	57.4 ft	A
27	Iron	WI	Hewitt Lake	55.8 ft	A
28	Adams	WI	Parker Lake	55.8 ft	A
29	Pine	MN	Sturgeon Lake	55 ft	A
30	Kenosha	WI	Paddock Lake	49.2 ft	A
31	Manitowoc	WI	Mi32 Lake	49.2 ft	A
32	Sauk	WI	Dutch Hollow Lake	49.2 ft	A
33	St. Louis	MN	St James Pit Lake	47.6 ft	A
34	Washington	MN	Big Carnelian Lake	46.8 ft	A
35	Cass	MN	Long Lake	46.6 ft	A
36	Fond du Lac	WI	Forest Lake	45.9 ft	A
37	Chippewa	WI	Two Island Lake	45.5 ft	A
38	Door	WI	Mi47 Lake	45.1 ft	A
39	Menominee	WI	La Motte Lake	44.7 ft	A
40	Rusk	WI	Clear Lake	44.3 ft	A
41	Walworth	WI	Pleasant Lake	44.3 ft	A
42	Barron	WI	Silver Lake	42.7 ft	A
43	Racine	WI	Mi17 Lake	39.7 ft	A
44	Washington	WI	Lake Five	39.4 ft	A
45	Clearwater	MN	Morrison Lake	39.4 ft	A
46	Jefferson	WI	Rock Lake	39.4 ft	A
47	Cook	MN	Chester Lake	39 ft	A
48	Price	WI	Cochran Lake	37.7 ft	A
49	Wood	WI	Nepco Lake	36.1 ft	A
50	Lake	MN	Divide Lake	33.2 ft	A
51	Brown	WI	Lily Lake	33.1 ft	A
52	Taylor	WI	Richter Lake	32.8 ft	A
53	St. Croix	WI	Bass Lake	31.2 ft	A
54	Columbia	WI	Silver Lake West Basin	30.3 ft	A
55	Dane	WI	Salmo Pond	30.2 ft	A
56	Vernon	WI	Sidie Hollow Lake	29.5 ft	A
57	Kewaunee	WI	East Alaska Lake	28.7 ft	A
58	Ashland	WI	Lake Galilee	27.9 ft	A
59	Dakota	MN	Holland Lake	27.9 ft	A
60	Otter Tail	MN	Kerbs Lake	27.7 ft	A
61	Milwaukee	WI	Lakeshore State Park Fish Shocking	26.2 ft	A
62	Mille Lacs	MN	Ml-Vineland Lake	25.6 ft	A
63	Aitkin	MN	Ml-Ce Lake	25.6 ft	B
64	Richland	WI	Cruson Slough Lake	25.1 ft	A
65	Crow Wing	MN	Serpent Lake	25 ft	A
66	Becker	MN	Bad Medicine Lake	25 ft	A
67	Ozaukee	WI	Sandhill Lake	24.6 ft	B
68	Hubbard	MN	Big Sand Lake	23 ft	A
69	Green Lake	WI	Big Twin Lake	23 ft	A
70	Iowa	WI	Kendal Lake	22.6 ft	B
71	Sherburne	MN	East Hunter Lake	22.1 ft	A
72	Wright	MN	West Sylvia Lake	22 ft	A
73	Unknown	MN	Ottertrack Lake	20.7 ft	A
74	Stearns	MN	Big Fish Lake	20.7 ft	A
75	Lafayette	WI	Hidden Valley Lake 1	20.5 ft	A
76	Douglas	MN	North Union Lake	20.3 ft	A
77	Carver	MN	Courthouse Lake	20 ft	A
78	Marathon	WI	Big Bass Lake	19.7 ft	A
79	Hennepin	MN	Little Long Lake	19 ft	A
80	Lake of the Woods	MN	Low: Mpca Co-Located Site Lake	18 ft	A
81	Morrison	MN	Alexander Lake	16.5 ft	A
82	Scott	MN	Krenz Lake	16.2 ft	A
83	Grant	WI	Jones Slough Lake	16.1 ft	B
84	Todd	MN	Mons Lake	15.4 ft	A
85	Carlton	MN	Sofie Lake	15.4 ft	A
86	Wadena	MN	Spirit Lake	15.4 ft	A
87	Kandiyohi	MN	George Lake	15 ft	A
88	Polk	MN	Union Lake	14.5 ft	A
89	Chisago	MN	Stauffer Lake	14.1 ft	A
90	Olmsted	MN	Bamber Lake	14.1 ft	A
91	Isanti	MN	Spectacle Lake	13.8 ft	A
92	Meeker	MN	Minnie-Belle Lake	13.5 ft	A
93	Mahnomen	MN	Bass Lake	13.1 ft	A
94	Ramsey	MN	Wabasso Lake	13 ft	B
95	Dunn	WI	Tainter Lake	12.3 ft	C
96	Le Sueur	MN	Fish Lake	11.8 ft	A
97	Dodge	WI	Lake Emily	11.5 ft	B
98	Anoka	MN	Netta Lake	11.3 ft	A
99	Pope	MN	Minnewaska Lake	11.2 ft	B
100	Eau Claire	WI	Fairchild Pond	10.8 ft	B
101	Winnebago	WI	Rush Lake	10.7 ft	B
102	Grant	MN	Elk Lake	10 ft	B
103	Steele	MN	Beaver Lake	9.5 ft	B
104	Calumet	WI	Chilton Millpond	9.5 ft	D
105	Lincoln	MN	Perch Lake	9.3 ft	C
106	Rice	MN	Dudley Lake	9 ft	C
107	Pierce	WI	St. Croix 8 Mi. Upstream of Point Douglas Dr Lake	8.9 ft	C
108	Juneau	WI	Petenwell Flowage Lake	7.8 ft	C
109	Koochiching	MN	Rainy Lake	7.5 ft	C
110	Kanabec	MN	Devil'S Lake	7.3 ft	C
111	Big Stone	MN	Unnamed Lake	6.9 ft	D
112	Green	WI	Beckman Lake	6.6 ft	D
113	Clark	WI	Mead Lake Nb Test Site	6.6 ft	D
114	McLeod	MN	Stahl'S Lake	6 ft	D
115	Waseca	MN	Reeds Lake	6 ft	D
116	Wabasha	MN	Robinson Lake	5.9 ft	D
117	Swift	MN	Camp Lake	5.7 ft	D
118	Freeborn	MN	State Line Lake	5.2 ft	D
119	Houston	MN	Target Lake	5.1 ft	D
120	Nicollet	MN	Unnamed Lake	5 ft	B
121	Yellow Medicine	MN	Del Clark Lake	5 ft	D
122	Renville	MN	Preston Lake	5 ft	F
123	Monroe	WI	Lake Tomah	4.9 ft	D
124	Jackson	MN	Fish Lake	4.5 ft	C
125	Crawford	WI	Unnamed Lake	4.1 ft	D
126	Cottonwood	MN	Bingham Lake	4 ft	D
127	Brown	MN	Wellner-Hageman Reservoir	3.7 ft	D
128	Blue Earth	MN	Madison Lake	3.6 ft	D
129	Stevens	MN	Hattie Lake	3.5 ft	D
130	Murray	MN	Sarah Lake	3.4 ft	D
131	Nobles	MN	Okabena Lake	3.3 ft	F
132	Watonwan	MN	Fedji Lake	3.1 ft	D
133	Martin	MN	South Silver Lake	3 ft	F
134	Pepin	MN	Pepin Lake	3 ft	F
135	Winona	MN	Winona Lake	2.6 ft	D
136	Clay	MN	Bjorndahl Lake	2.3 ft	F
137	Benton	MN	Little Rock Lake	2 ft	F
138	Lyon	MN	Island Lake	2 ft	F
139	Redwood	MN	Laura Lake	2 ft	F
140	Pepin	WI	Pepin Lake	1.6 ft	F
141	Pipestone	MN	Split Rock Reservoir	1.3 ft	F
142	La Crosse	WI	Neshonoc Lake	1.3 ft	F
143	Chippewa	MN	Shakopee Lake	1 ft	F