What lakes are in the St. Croix Watershed?

381 monitored lakes drain through the St. Croix Watershed, including Ida Lake, Square Lake, Latoka Lake, and others. The watershed spans Minnesota and Wisconsin.

What is the cleanest lake in the St. Croix Watershed?

Ida Lake in Douglas County is the highest-rated lake in the St. Croix 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 St. Croix Watershed corresponds to HUC8 07030005.

St. Croix Watershed

Minnesota and Wisconsin · 381 monitored lakes · 93 grade A · 101 grade B · HUC8 07030005

The St. Croix River basin straddling the Minnesota–Wisconsin border, one of the cleanest large-river watersheds in the Upper Midwest and a National Scenic Riverway.

Reviewed by LakeQuality Editorial Team · Updated Jul 20, 2026

Counties in this watershed

Pine, Chisago, Washington, Polk, Burnett, St. Croix, Douglas

Monitored Lakes (381)

#	Lake	County	Grade	Clarity	Area	Depth
1	Ida Lake	Douglas	A	16.4 ft	4,445 acres	106 ft
2	Square Lake	Washington	A	17 ft	203 acres	68 ft
3	Latoka Lake	Douglas	A	19 ft	767 acres	108 ft
4	Cowdry Lake	Douglas	A	17.1 ft	243 acres	52 ft
5	Union Lake	Polk	A	15 ft	-	-
6	Miltona Lake	Douglas	A	18.7 ft	5,731 acres	105 ft
7	Mina Lake	Douglas	A	16 ft	411 acres	123 ft
8	Sturgeon Lake	Pine	A	17 ft	1,706 acres	40 ft
9	Moon Lake	Douglas	A	21 ft	139 acres	38 ft
10	Whiskey Lake	Douglas	A	18.8 ft	160 acres	46 ft
11	Stony Lake	Douglas	A	15.7 ft	87 acres	58 ft
12	Lottie Lake	Douglas	A	16.1 ft	46 acres	31 ft
13	Moses Lake	Douglas	A	16.5 ft	824 acres	32 ft
14	Carlos Lake	Douglas	A	18 ft	2,605 acres	163 ft
15	Big Carnelian Lake	Washington	A	15 ft	457 acres	66 ft
16	Stoney Lake	Douglas	A	19 ft	87 acres	58 ft
17	Little Carnelian Lake	Washington	A	20 ft	137 acres	68 ft
18	North Union Lake	Douglas	A	20.3 ft	118 acres	42 ft
19	Sturgeon Lake	Pine	A	16.8 ft	1,706 acres	40 ft
20	East Boot Lake	Washington	A	15 ft	47 acres	27 ft
21	Clear Lake	Polk	A	15.5 ft	30 acres	26 ft
22	Long Lake	Burnett	A	21.5 ft	222 acres	41 ft
23	Pike Lake	Polk	A	-	148 acres	33 ft
24	North Twin Lake	Polk	A	-	129 acres	27 ft
25	Deer Lake	Polk	A	16 ft	786 acres	46 ft
26	Ward Lake	Burnett	A	-	17 acres	21 ft
27	Sand Lake	Polk	A	20 ft	-	-
28	Viola Lake	Burnett	A	17 ft	265 acres	34 ft
29	Half Moon Lake	Polk	A	15.3 ft	550 acres	60 ft
30	Leader Lake	Douglas	A	15.3 ft	171 acres	56 ft
31	Whitefish Lake	Douglas	A	24.5 ft	848 acres	102 ft
32	South Twin Lake	Polk	A	-	72 acres	9 ft
33	Whitefish Lake	Douglas	A	25.3 ft	848 acres	102 ft
34	Des Moines Lake	Burnett	A	18.9 ft	215 acres	37 ft
35	Sand Lake	Burnett	A	18.3 ft	900 acres	73 ft
36	Big Cedar Lake	Washington	A	16.4 ft	937 acres	105 ft
37	Middle Mckenzie Lake	Burnett	A	20 ft	527 acres	45 ft
38	Margaret Lake	Polk	A	15.5 ft	42 acres	17 ft
39	Bond Lake	Douglas	A	18 ft	279 acres	67 ft
40	Sand Lake	Burnett	A	19.5 ft	-	-
41	Lower Pine Lake	Polk	A	21 ft	96 acres	102 ft
42	Bardon Lake	Douglas	A	27 ft	848 acres	102 ft
43	Park Creek Pond	Douglas	A	-	9 acres	7 ft
44	Cheney Lake	Douglas	A	-	20 acres	21 ft
45	Amy Bell Lake	Washington	A	-	30 acres	37 ft
46	Twin Lake	Washington	A	13 ft	-	-
47	Clear Lake	Washington	A	14 ft	42 acres	27 ft
48	Big Carnelian Lake	Washington	A	14.5 ft	457 acres	66 ft
49	Elmo Lake	Washington	A	11.1 ft	257 acres	140 ft
50	Jane Lake	Washington	A	13 ft	158 acres	39 ft
51	Olson Lake	Washington	A	11.2 ft	87 acres	15 ft
52	Mays Lake	Washington	A	11 ft	40 acres	25 ft
53	West Boot Lake	Washington	A	14 ft	50 acres	34 ft
54	Chippewa Lake	Douglas	A	14.8 ft	1,186 acres	95 ft
55	Vermont Lake	Douglas	A	14.1 ft	342 acres	59 ft
56	Maple Lake	Douglas	A	14.1 ft	831 acres	78 ft
57	Darling Lake	Douglas	A	14 ft	1,050 acres	62 ft
58	White Bear Lake	Washington	A	14.4 ft	2,428 acres	83 ft
59	Perch Lake	Polk	A	10.3 ft	84 acres	19 ft
60	Andrew Lake	Douglas	A	13.9 ft	923 acres	83 ft
61	Johnson Lake	Pine	A	11.3 ft	-	-
62	Brophy Lake	Douglas	A	15.4 ft	297 acres	44 ft
63	Burgen Lake	Douglas	A	12 ft	174 acres	43 ft
64	South Oscar Lake	Douglas	A	16.7 ft	-	-
65	Louise Lake	Douglas	A	14.5 ft	214 acres	33 ft
66	Cable Lake	Polk	A	10.2 ft	194 acres	14 ft
67	Blackwell Lake	Douglas	A	11.5 ft	307 acres	42 ft
68	Stauffer Lake	Chisago	A	14.1 ft	-	-
69	Big Cedar Lake-North Site-Near West Bend	Washington	A	11.8 ft	937 acres	105 ft
70	Big Cedar Lake-South Site-Near West Bend	Washington	A	12.6 ft	937 acres	105 ft
71	Bass Lake	St. Croix	A	10 ft	-	-
72	Big Sand Lake	Burnett	A	11 ft	1,434 acres	55 ft
73	Pipe Lake	Polk	A	12 ft	293 acres	68 ft
74	Deer Lake	Burnett	A	13 ft	153 acres	23 ft
75	Paulsen Lake	Polk	A	12 ft	-	-
76	Church Pine Lake	Polk	A	13 ft	87 acres	45 ft
77	Wind Lake	Polk	A	10 ft	39 acres	-
78	Mud Hen Lake	Burnett	A	11 ft	569 acres	66 ft
79	Fish Lake	Burnett	A	14 ft	-	-
80	Minerva Lake	Burnett	A	10.5 ft	222 acres	26 ft
81	Benoit Lake	Burnett	A	11.1 ft	-	-
82	Pine Lake	Polk	A	13 ft	88 acres	34 ft
83	Tabor Lake	Burnett	A	12 ft	170 acres	28 ft
84	Johnson Lake	Burnett	A	12 ft	399 acres	23 ft
85	Lake Five	Washington	A	12 ft	104 acres	23 ft
86	Red Lake	Douglas	A	12 ft	253 acres	37 ft
87	Rooney Lake	Burnett	A	11 ft	329 acres	30 ft
88	Big Bear Lake	Burnett	A	10 ft	179 acres	17 ft
89	Poquettes Lake	Burnett	A	14.8 ft	96 acres	23 ft
90	Antler Lake	Polk	A	13.4 ft	94 acres	22 ft
91	Lind Lake	Burnett	A	13.5 ft	40 acres	19 ft
92	Ham Lake	Burnett	A	12.7 ft	313 acres	29 ft
93	Little Cedar Lake	Washington	A	10.5 ft	-	-
94	Fish Lake	Chisago	B	9.4 ft	319 acres	57 ft
95	Big Marine Lake	Washington	B	12 ft	-	-
96	Blooms Lake	Chisago	B	6.9 ft	48 acres	41 ft
97	North Lindstrom Lake	Chisago	B	6.9 ft	142 acres	29 ft
98	Lily Lake	Washington	B	10.5 ft	44 acres	51 ft
99	Little Horseshoe Lake	Chisago	B	7.5 ft	49 acres	43 ft
100	White Rock Lake	Washington	B	7.5 ft	-	-