Wyman Lake
Jackson County, WisconsinLimited DataMesotrophic
Wyman Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.
A TSI near 41 places Wyman Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. A maximum depth of just 8 ft means sediment-bound phosphorus releases back into the water column whenever wind stirs the bottom — a classic shallow-lake dynamic. The lake is compact at 7 acres, with partial shoreline records and little volume to buffer nutrient inputs. Wyman Lake sits at rank 3 of 4 in Jackson County, in the lower half of the local distribution.
Wyman Lake has no invasive species recorded in Wisconsin state databases as of 2019, though prevention practices still apply at all access points. 2 fish species are documented at Wyman Lake, a mixed warm-water community typical for Wisconsin lakes of this size. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2019-09-03. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 12.3 ft. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12.3 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 8 ft |
| Surface Area | 7 acres |
Fish Species
Click a species to see all Wisconsin and Minnesota lakes where it is found.
→ Best fishing times for Wyman Lake (14-day solunar calendar)
→ Is it safe to eat fish from Wyman Lake? (mercury & PFAS guide)
→ Wyman Lake fishing regulations (limits, seasons, special rules)
Location
County Ranking
Ranked #3 of 4 lakes in Jackson County
Nearby Lakes in Jackson County
More Wisconsin Lake Rankings
State Parks Near Wyman Lake
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2019).
Fish Species (DNR-rated)
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Fish and recreation data from Wisconsin DNR Lakes
Most recent sample: 2019-09-03
Monitoring stations: 1