Red Bass Lake
Vilas County, WisconsinMesotrophic
Red Bass Lake comes in at a B on the grading rubric — a respectable showing for a Wisconsin lake of its size and depth. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.
The lake sits in the mesotrophic zone — the band where most well-managed Wisconsin lakes fall. Red Bass Lake reaches 22 ft at its deepest point — typical for Wisconsin mid-sized lakes, with seasonal stratification but limited cold-water refuge. The lake is compact at 27 acres, with partial shoreline records and little volume to buffer nutrient inputs. Red Bass Lake ranks 169 of 202 in Vilas County — at the lower end of the locally monitored distribution.
Red Bass Lake has no invasive species recorded in Wisconsin state databases as of 2025, though prevention practices still apply at all access points. The fishery is bass-led, with 3 documented species across the lake's records. A documented public access point at Red Bass Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2025-07-25. 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 11.2 ft. Phosphorus level: 23.3 µg/L. Trophic State Index: 46.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.2 ft | B |
| Phosphorus | 23.3 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 22 ft |
| Surface Area | 27 acres |
| Public Access | Yes |
Fish Species
Click a species to see all Wisconsin and Minnesota lakes where it is found.
→ Best fishing times for Red Bass Lake (14-day solunar calendar)
→ Is it safe to eat fish from Red Bass Lake? (mercury & PFAS guide)
→ Red Bass Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: ↑ Improving
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.184 m/yr | 6 |
| Phosphorus | → Stable | +0.2 µg/L/yr | 6 |
Recreation & Access
Location
County Ranking
Ranked #169 of 202 lakes in Vilas County
Cleaner Lakes Within 30 Miles
Red Bass Lake holds Grade B. 5 nearby lakes hold higher grades.
- ALynx LakeVilas County · 0.7 mi · Higher grade (B → A)
- AAnnabelle LakeVilas County · 1.2 mi · Higher grade (B → A)
- AWildcat LakeVilas County · 2.7 mi · Higher grade (B → A)
- ACrab LakeVilas County · 2.7 mi · Higher grade (B → A)
- AArmour LakeVilas County · 2.7 mi · Higher grade (B → A)
Nearby Lakes in Vilas County
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 2018. 1 station on file (most recent sample 2025).
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: 2025-07-25
Monitoring stations: 1