Grant County Lake Quality

Minnesota, 9 lakes, average grade D (Nutrient-rich)

Grant County has 9 graded lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. The county-wide average grade is D — water quality issues are persistent across most of the monitored basins. 0 lakes fall into the F bracket outright.

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 Lower Elk Lake (D); the most-stressed is Lower Elk Lake (D).

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Quick Answers for Grant County

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

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

Fishing in Grant County

Grant County Fishing Guide

Fish species and best-graded lakes in Grant County

DNR Reports (12)

Minnesota DNR LakeFinder resources for lakes in Grant 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 — Pomme de Terre
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Lower Elk
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Elk
Fisheries Lake Survey · MN DNR LakeFinder
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Fisheries Lake Survey — Barrett
Fisheries Lake Survey · MN DNR LakeFinder
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Public Water Access Sites — Unnamed
Public Water Access Sites · MN DNR LakeFinder
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Fish Stocking History — Barrett
Fish Stocking History · MN DNR LakeFinder
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Public Water Access Sites — Barrett
Public Water Access Sites · MN DNR LakeFinder
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Fish Stocking History — Elk
Fish Stocking History · MN DNR LakeFinder
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Public Water Access Sites — Elk
Public Water Access Sites · MN DNR LakeFinder
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Fish Stocking History — Lower Elk
Fish Stocking History · MN DNR LakeFinder
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Fish Stocking History — Pomme de Terre
Fish Stocking History · MN DNR LakeFinder
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Public Water Access Sites — Pomme de Terre
Public Water Access Sites · MN DNR LakeFinder

All Lakes in Grant County

9 lakes · 1 graded, 8 not rated1 graded lake · 8 not rated, hidden

Include not-rated lakes (8)

#	Lake	Grade	Clarity	Phosphorus	Algae	Trophic	Max Depth	Access
1	DLower Elk LakeGrant	D	1.8 ft	58.5 µg/L	28.7 µg/L	No recent samples	13 ft	✓ Public
	NRUnnamed LakeGrant	NR	3.6 ft	72 µg/L	12.6 µg/L	No recent samples	No recent samples	Carry-in
	NRUnnamed LakeGrant	NR	6.7 ft	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	NRUnnamed LakeGrant	NR	0.7 ft	269 µg/L	114 µg/L	No recent samples	No recent samples	Carry-in
	NRBarrett LakeGrant	NR	4 ft	No recent samples	No recent samples	No recent samples	28 ft	✓ Public
	NRElk LakeGrant	NR	9 ft	No recent samples	No recent samples	No recent samples	29 ft	✓ Public
	NRPomme de Terre LakeGrant	NR	4.5 ft	No recent samples	No recent samples	No recent samples	23 ft	✓ Public
	NRFlekkefjord LakeGrant	NR	2.6 ft	No recent samples	No recent samples	No recent samples	No recent samples	Carry-in
	NRBarrows LakeGrant	NR	6.6 ft	287 µg/L	2.2 µg/L	No recent samples	No recent samples	✓ 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.

Lake Match