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LakeQuality
B

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.

MetricValueGrade
Water Clarity (Secchi Depth)11.2 ftB
Phosphorus23.3 µg/LB
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)46Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth22 ft
Surface Area27 acres
Public AccessYes

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).

MetricTrendChange/YearYears
Water Clarity Improving+0.184 m/yr6
Phosphorus Stable+0.2 µg/L/yr6
See year-by-year chart →

Recreation & Access

1
Boat Landings
Yes
Public Access

Location

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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.

See full comparison →

Nearby Lakes in Vilas County

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)

Panfish(Common)Trout(Common)Largemouth Bass(Present)

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