Lower Sugarbush Lake
Lower Sugarbush Lake in Vilas County, Wisconsin has a water quality grade of B (Good). Water clarity: 14 ft visibility. Phosphorus: 10.3 µg/L.
- Clarity
- 14 ft
- Type
- Oligotrophic
- Trend
- ↓ Declining
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Lower Sugarbush Lake is a cold, clear oligotrophic lake in Vilas County, Wisconsin. Water quality is graded B based on 1 sampling years through 2024. Overall water quality is declining over recent sampling years. Compared to the 102 other monitored lakes in Vilas County, Lower Sugarbush Lake ranks #62 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-09-02. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Good for swimming, clear water with low algae levels
Water Quality Grade: B (Good)
Good clarity, visible to about 14 ft. Phosphorus level: 10.3 µg/L. Trophic State Index: 38.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14 ft | Not graded |
| Phosphorus | 10.3 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 38 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Lower Sugarbush Lake
Compare lakeside cabins, hotels, and vacation rentals near Lower Sugarbush Lake in Vilas County, Wisconsin — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Fishing Lower Sugarbush Lake
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.6 m/yr | 5 |
| Phosphorus | ↓ Declining | +0.76 µg/L/yr | 4 |
County Ranking
Ranked #62 of 103 lakes in Vilas County
Nearby Lakes in Vilas County
Frequently asked questions about Lower Sugarbush Lake
Where is Lower Sugarbush Lake?
- Lower Sugarbush Lake is a lake in Vilas County, Wisconsin. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lower Sugarbush Lake?
- Lower Sugarbush Lake in Vilas County, Wisconsin has a water quality grade of B (Good). Water clarity: 14 ft visibility. Phosphorus: 10.3 µg/L.
Is Lower Sugarbush Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Lower Sugarbush Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
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Where this data comes from
20 measurements from 2 monitoring stations, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX20 samples · 2020–2024
Analytical methods
- Phosphorus by Colorimetry
Monitoring station identifiers (2)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)