Eutrophic Lakes in Michigan
18 eutrophic lakes in Michigan. High nutrients, frequent algae, reduced clarity.
Eutrophic lakes — TSI 50 to 70 — are nutrient-rich and productive, with persistent summer algal communities that drive visible reductions in clarity. These conditions are not failures; they reflect a lake doing what nutrient-loaded waters do. 18 Michigan lakes register as eutrophic. Only 0% are deep — eutrophy correlates with shallowness, agricultural watersheds, and the kind of nutrient-input history that takes decades to shift.
Eutrophic lakes typically carry higher phosphorus and chlorophyll-a readings. The same nutrient richness that defines the trophic class shows up in those numbers.
| # | Lake | County | Clarity | Depth | TSI |
|---|---|---|---|---|---|
| 1 | Little Africa Lake | Gogebic | 3 ft | - | 55 |
| 2 | Cisco Lake | Gogebic | 7 ft | 20 ft | 52 |
| 3 | Juno Lake | Cass | 7.5 ft | - | 49 |
| 4 | West Maggie Lake | Iron | 7 ft | - | 48 |
| 5 | North Pond | Chippewa | 1.3 ft | - | 62 |
| 6 | Indian Lake | Gogebic | 4.5 ft | - | 53 |
| 7 | Tull Lake | Oakland | 4.8 ft | - | 53 |
| 8 | Spectacle Lake | Chippewa | - | 5 ft | 53 |
| 9 | Flint Park Lake | Genesee | 3.8 ft | - | 61 |
| 10 | Chickenbone Lake | Keweenaw | 6.1 ft | - | 52 |
| 11 | Moore Lake | Allegan | 6.2 ft | - | 54 |
| 12 | South Pond | Chippewa | 1.4 ft | - | 64 |
| 13 | Lake Diane | Hillsdale | 2.5 ft | - | 62 |
| 14 | Indianwood Lake | Oakland | 8.8 ft | - | 52 |
| 15 | Round Lake | Shiawassee | 6 ft | - | 55 |
| 16 | Palmer Lake | St. Joseph | 2 ft | 40 ft | 58 |
| 17 | Gage Lake | Cass | - | - | 63 |
| 18 | Rodgers Lake | Cass | - | - | 69 |
All eutrophic lakes →Minnesota version →Wisconsin version →Illinois version →Iowa version →Ohio version →Pennsylvania version →New York version →Missouri version →Indiana version →North Dakota version →South Dakota version →Florida version →Colorado version →North Carolina version →Vermont version →Texas version →Oregon version →Arkansas version →Oklahoma version →Kansas version →Nebraska version →Nevada version →Arizona version →Idaho version →Montana version →New Mexico version →Tennessee version →Alabama version →Virginia version →Kentucky version →Utah version →Washington version →Wyoming version →Georgia version →Massachusetts version →Ontario version →Québec version →Nova Scotia version →British Columbia version →Newfoundland and Labrador version →All Michigan lakes →
Source: EPA National Aquatic Resource Surveys, 2026.