Burns Lake
Sawyer County, WisconsinMesotrophic
Burns Lake earns an A — every scored parameter (clarity and phosphorus) rates among the best monitored waters in Sawyer County. clarity and phosphorus rate similarly, so there is no obvious single lever to pull on watershed management.
Mesotrophic conditions dominate at Burns Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. At only 9 ft deep, Burns Lake is shallow — wind keeps the water column mixed and sediment resuspension drives phosphorus levels harder to manage. At 41 acres, Burns Lake sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Among the 50 graded lakes in Sawyer County, Burns Lake sits at rank 22, above the county median.
No invasive species are currently listed at Burns Lake — the lake remains off the Wisconsin infested-waters roster. The fishery includes walleye among the lake's 4 documented species — a notable draw for Wisconsin anglers. 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 2025-08-25. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 11.5 ft. Phosphorus level: 12.7 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.5 ft | B |
| Phosphorus | 12.7 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 9 ft |
| Surface Area | 41 acres |
Fish Species
Click a species to see all Wisconsin and Minnesota lakes where it is found.
→ Best fishing times for Burns Lake (14-day solunar calendar)
→ Is it safe to eat fish from Burns Lake? (mercury & PFAS guide)
→ Burns Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.747 m/yr | 6 |
| Phosphorus | → Stable | -0.08 µg/L/yr | 6 |
Location
County Ranking
Ranked #22 of 50 lakes in Sawyer County
Nearby Lakes in Sawyer County
More Wisconsin Lake Rankings
Other Grade A Lakes in Wisconsin
Washington County · Clarity: 11.8 ft
Washington County · Clarity: 12.6 ft
Walworth County · Clarity: 11 ft
Waukesha County · Clarity: 11.3 ft
Walworth County · Clarity: 20.2 ft
Kenosha County · Clarity: 10 ft
Mesotrophic Lakes in Wisconsin
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 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
Most recent sample: 2025-08-25
Monitoring stations: 1