Round Goby
Invasive SpeciesFound in 15 lakes
Round Goby appears on the {{stateName}} infested-waters lists for 15 surface waters. Boaters and anglers moving gear in or out of those lakes carry a clean-drain-dry obligation under state law. 15 lakes — narrow enough that aggressive containment is still on the table. Most upper-Midwest invasives that established here did so quietly over a decade before anyone noticed, so a low number today is not a guarantee for tomorrow.
The presence of Round Goby does not directly change a lake's LakeGrade rubric score — the grade measures the water itself, not the species inhabiting it. But invasive presence is a meaningful adjacent signal worth reading alongside the grade.
Lakes with Round Goby
| Lake | County | State | Grade | Depth |
|---|---|---|---|---|
| Su18 Lake | Cook | MN | A | - |
| Su19 Lake | Cook | MN | A | - |
| Superior Lake | Cook | MN | A | - |
| Superior Lake | St. Louis | MN | A | - |
| Ls94 Lake | Lake | MN | A | - |
| Suseq32a Lake | St. Louis | MN | A | - |
| Seq044a Lake | Lake | MN | A | - |
| Suseq44a Lake | Lake | MN | A | - |
| Seq032a Lake | St. Louis | MN | A | - |
| Clark Lake | Door | WI | A | 25 ft |
| Little Lake Deep | Cook | MN | B | - |
| Teal Lake Deep | Cook | MN | C | - |
| Little Lake Butte des Morts | Winnebago | WI | D | 18 ft |
| Little Lake Inlet | Cook | MN | F | - |
| Little Lake Landing | Cook | MN | F | - |
Frequently Asked Questions
How many lakes have round goby?
Round Goby has been documented in 15 lakes, 13 in Minnesota and 2 in Wisconsin.
Does round goby affect water quality?
Invasive species can significantly affect lake ecosystems. They may alter nutrient cycling, displace native species, and change water clarity. Lakes with round goby should be monitored for changes in water quality over time.
Source: EPA National Aquatic Resource Surveys, 2026.