Stutsman County Lake Quality
Wisconsin, 7 lakes, average grade C (Fair)
Only 7 lakes in Stutsman 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. The county average is C — the middle of the rubric, with one or two lakes pulling the average up or down depending on year.
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. Spiritwood Lake (A) is the cleanest in the county.
Quick Answers for Stutsman County
Planning a trip? Check special fishing regulations for Spiritwood Lake, whether the fish are safe to eat, and the best times to fish — or browse the full Wisconsin regulations index.
All Lakes in Stutsman County
| Rank | Lake | Grade | Clarity | Max Depth | Phosphorus |
|---|---|---|---|---|---|
| 1 | Spiritwood Lake | A | 31 ft | - | - |
| 2 | Clark Lake | B | 10 ft | - | - |
| 3 | Jamestown Reservoir | B | 7.2 ft | - | - |
| 4 | Bader Lake | C | 1.3 ft | - | - |
| 5 | Hehn-Schaffer Lake | C | 6.6 ft | - | - |
| 6 | Jamestown Reservoir | D | 6 ft | - | 560.5 µg/L |
| 7 | Barnes Lake | D | 6.4 ft | - | - |
Source: EPA National Aquatic Resource Surveys, 2026.