Noble County Lake Quality
Wisconsin, 3 lakes, average grade C (Fair)
Only 3 lakes in Noble County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. Noble 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.
Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Lmj-18 Lake (C) is the cleanest in the county.
Quick Answers for Noble County
Planning a trip? Check special fishing regulations for Lmj-18 Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
All Lakes in Noble County
| Rank | Lake | Grade | Clarity | Max Depth | Phosphorus |
|---|---|---|---|---|---|
| 1 | Lmj-18 Lake | C | 4.9 ft | - | - |
| 2 | Lmj-16 Lake | C | 4.1 ft | - | - |
| 3 | Lmj-15 Lake | C | 3.4 ft | - | - |
Source: EPA National Aquatic Resource Surveys, 2026.