Todd County Lake Quality

Minnesota, 18 lakes, average grade C (Fair)

Todd County's 18 graded lakes fall in the moderate-density bracket for Minnesota. The county-level average smooths over real differences — a single agricultural watershed near the southwest corner can pull the average down even if the rest of the county runs clean. Todd County averages to a C. The distribution behind that average matters more than the letter: a few stressed lakes versus many decent ones can produce the same average as the inverse.

The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Little Birch Lake (A); the most-stressed is Maple Lake (D).

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Quick Answers for Todd County

Cleanest lakes in Todd County →Cleanest lakes in Minnesota →Safest swimming lakes in Minnesota →

Planning a trip? Check special fishing regulations for Little Birch Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Minnesota regulations index.

Fishing in Todd County

Todd County Fishing Guide

Fish species and best-graded lakes in Todd County

DNR Reports (40)

Minnesota DNR LakeFinder resources for lakes in Todd County. browse all reports →

These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).

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Fisheries Lake Survey — Turtle
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Pine Island
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Osakis
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Moose
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Mons
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Maple
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Long
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Little Sauk
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Little Birch
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Latimer
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Horseshoe
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Guernsey
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Fairy
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Big Swan
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Big Birch
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Beauty
Fisheries Lake Survey · MN DNR LakeFinder
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Aquatic Plant Report — Beauty (0897)
Aquatic Plant Report · MN DNR LakeFinder
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Fish Stocking History — Beauty
Fish Stocking History · MN DNR LakeFinder
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Public Water Access Sites — Beauty
Public Water Access Sites · MN DNR LakeFinder
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Aquatic Plant Report — Big Birch (1058)
Aquatic Plant Report · MN DNR LakeFinder
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Fish Stocking History — Big Birch
Fish Stocking History · MN DNR LakeFinder
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Public Water Access Sites — Big Birch
Public Water Access Sites · MN DNR LakeFinder
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Aquatic Plant Report — Big Swan (1060)
Aquatic Plant Report · MN DNR LakeFinder
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Fish Stocking History — Big Swan
Fish Stocking History · MN DNR LakeFinder
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Public Water Access Sites — Big Swan
Public Water Access Sites · MN DNR LakeFinder
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Aquatic Plant Report — Fairy (0902)
Aquatic Plant Report · MN DNR LakeFinder
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Fish Stocking History — Fairy
Fish Stocking History · MN DNR LakeFinder
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Public Water Access Sites — Fairy
Public Water Access Sites · MN DNR LakeFinder
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Fish Stocking History — Guernsey
Fish Stocking History · MN DNR LakeFinder
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Public Water Access Sites — Guernsey
Public Water Access Sites · MN DNR LakeFinder
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Aquatic Plant Report — Horseshoe (0893)
Aquatic Plant Report · MN DNR LakeFinder
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Fish Stocking History — Horseshoe
Fish Stocking History · MN DNR LakeFinder
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Public Water Access Sites — Horseshoe
Public Water Access Sites · MN DNR LakeFinder
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Fish Stocking History — Latimer
Fish Stocking History · MN DNR LakeFinder
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Public Water Access Sites — Latimer
Public Water Access Sites · MN DNR LakeFinder
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Aquatic Plant Report — Little Birch (0908)
Aquatic Plant Report · MN DNR LakeFinder
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Fish Stocking History — Little Birch
Fish Stocking History · MN DNR LakeFinder
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Public Water Access Sites — Little Birch
Public Water Access Sites · MN DNR LakeFinder
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Fish Stocking History — Little Sauk
Fish Stocking History · MN DNR LakeFinder
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Public Water Access Sites — Little Sauk
Public Water Access Sites · MN DNR LakeFinder

All Lakes in Todd County

18 lakes · 8 graded, 10 not rated8 graded lakes · 10 not rated, hidden

Include not-rated lakes (10)

#	Lake	Grade	Clarity	Phosphorus	Algae	Trophic	Max Depth	Access
1	ALittle Birch LakeTodd	A	13 ft	19 µg/L	3.1 µg/L	No recent samples	89 ft	✓ Public
2	CBig Birch LakeTodd	C	12.5 ft	25 µg/L	4.4 µg/L	No recent samples	81 ft	✓ Public
3	CLong LakeTodd	C	10.1 ft	25 µg/L	7 µg/L	No recent samples	63 ft	✓ Public
4	DMaple LakeTodd	D	6 ft	51 µg/L	28 µg/L	No recent samples	23 ft	✓ Public
5	DGuernsey LakeTodd	D	3.9 ft	83 µg/L	19.7 µg/L	No recent samples	19 ft	✓ Public
6	DLittle Sauk LakeTodd	D	5.1 ft	85 µg/L	23 µg/L	No recent samples	29 ft	✓ Public
7	DOsakis LakeTodd	D	10.5 ft	75 µg/L	9.6 µg/L	No recent samples	73 ft	✓ Public
8	DJuergens LakeTodd	D	5.9 ft	78 µg/L	21.9 µg/L	No recent samples	22 ft	✓ Public
	NRHorseshoe LakeTodd	NR	10 ft	No recent samples	No recent samples	No recent samples	24 ft	✓ Public
	NRLong LakeTodd	NR	14 ft	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	NRBig Swan LakeTodd	NR	9 ft	No recent samples	No recent samples	No recent samples	45 ft	✓ Public
	NRMoose LakeTodd	NR	6 ft	No recent samples	No recent samples	No recent samples	26 ft	✓ Public
	NRTurtle LakeTodd	NR	12 ft	No recent samples	No recent samples	No recent samples	39 ft	✓ Public
	NRFairy LakeTodd	NR	14.2 ft	No recent samples	No recent samples	No recent samples	37 ft	✓ Public
	NRLatimer LakeTodd	NR	5 ft	58.5 µg/L	57.1 µg/L	No recent samples	30.5 ft	✓ Public
	NRBeauty LakeTodd	NR	7 ft	No recent samples	No recent samples	No recent samples	27 ft	✓ Public
	NRPine Island LakeTodd	NR	15.5 ft	No recent samples	No recent samples	No recent samples	26 ft	✓ Public
	NRMons LakeTodd	NR	15.4 ft	11 µg/L	2.8 µg/L	No recent samples	80 ft	✓ Public

NR = not rated: the monitoring record does not meet the evidence bar for a grade. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.

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