What is the cleanest lake in Chisago County, Minnesota?

Fish Lake in Chisago County has the cleanest nutrient and algae readings in Chisago County, Minnesota, with 9.4 feet of measured water clarity.

How are these rankings calculated?

Nutrients and algae, total phosphorus, nitrogen, chlorophyll-a and turbidity, are read against EPA National Lakes Assessment 2022 condition classes for that lake’s ecoregion. Water clarity (Secchi depth) is measured and shown separately. Lakes without enough recent samples are listed without a condition class rather than ranked low. Source data comes from the EPA Water Quality Portal.

Cleanest Lakes in Chisago County, Minnesota

Fish Lake in Chisago County leads the rankings on measured clarity and nutrients and 9.4 ft of clarity. Below are the top 50 cleanest monitored lakes in Chisago County, Minnesota, ranked on EPA nutrient and algae measurements.

Ranked List

#	Lake	County	Clarity	Phosphorus	Algae
1	Fish Lake	Chisago	9.4 ft	14.5 µg/L	3 µg/L
2	Spider Lake	Chisago	6.5 ft	22 µg/L	3.2 µg/L
3	South Lindstrom Lake	Chisago	5.6 ft	16 µg/L	6.1 µg/L
4	School Lake	Chisago	7.9 ft	20 µg/L	1.8 µg/L
5	Blooms Lake	Chisago	6.9 ft	16 µg/L	1.4 µg/L
6	North Lindstrom Lake	Chisago	6.9 ft	14.5 µg/L	3.3 µg/L
7	Kroon Lake	Chisago	5.9 ft	22 µg/L	5.3 µg/L
8	Little Horseshoe Lake	Chisago	7.5 ft	16 µg/L	4.9 µg/L
9	Mattson Lake	Chisago	3.9 ft	12 µg/L	1 µg/L
10	Chain Lake	Chisago	5.9 ft	16 µg/L	2.7 µg/L
11	Sunrise Lake	Chisago	8.4 ft	9.4 µg/L	2.5 µg/L
12	Horseshoe Lake	Chisago	4.6 ft	28 µg/L	12.2 µg/L
13	Green Lake	Chisago	6 ft	23 µg/L	8.4 µg/L
14	Goose Lake	Chisago	4.5 ft	30.5 µg/L	11.5 µg/L
15	South Center Lake	Chisago	4.7 ft	29.5 µg/L	14 µg/L
16	Swamp Lake	Chisago	1.6 ft	46 µg/L	6 µg/L
17	Comfort Lake	Chisago	6 ft	29.5 µg/L	15 µg/L
18	Little Lake	Chisago	3 ft	68 µg/L	23 µg/L
19	Chisago Lake	Chisago	4 ft	25.5 µg/L	14.9 µg/L
20	North Center Lake	Chisago	3 ft	40 µg/L	18 µg/L
21	Rabour Lake	Chisago	3 ft	48 µg/L	22.5 µg/L
22	Mandall Lake	Chisago	3 ft	57 µg/L	26.4 µg/L
23	Emily Lake	Chisago	1.6 ft	145 µg/L	46 µg/L
24	Rush Lake	Chisago	3 ft	55.5 µg/L	31.4 µg/L
25	Wallmark Lake	Chisago	1.6 ft	89 µg/L	39.5 µg/L
26	Pioneer Lake	Chisago	2 ft	82 µg/L	47.8 µg/L
27	Ogrens Lake	Chisago	2.6 ft	56 µg/L	35 µg/L
28	Linn Lake	Chisago	2 ft	68.5 µg/L	43.4 µg/L
29	Second Lake	Chisago	-	-	-
30	First Lake	Chisago	-	-	-
31	School Lake	Chisago	-	-	-
32	Birch Lake	Chisago	-	-	-
33	Heims Lake	Chisago	-	-	-
34	Mud Lake	Chisago	-	-	-
35	Mud Lake	Chisago	-	-	-
36	Pine Lake	Chisago	-	-	-
37	Mud Lake	Chisago	-	-	-
38	Neander Lake	Chisago	-	-	-
39	Chain Lake	Chisago	-	-	-
40	Indianhead Flowage	Chisago	-	-	-
41	Peterson Slough	Chisago	-	-	-
42	Vibo Lake	Chisago	-	-	-
43	North Pool	Chisago	-	-	-
44	School Lake	Chisago	-	-	-
45	Chisago Lake	Chisago	-	-	-
46	Little Green Lake	Chisago	-	-	-
47	Sam Lake	Chisago	-	-	-
48	White Stone Lake	Chisago	-	-	-
49	Pine Lake	Chisago	-	-	-
50	Spider Lake	Chisago	-	-	-

Ranked List

More Answers for Chisago County, Minnesota