Eagle Lake
Eagle Lake in Bayfield County, Wisconsin has a water quality grade of B (Good). Water clarity: 17 ft visibility. Phosphorus: 14.6 µg/L. Maximum depth: 52 ft. Surface area: 163 acres.
- Clarity
- 17 ft
- Max depth
- 52 ft
- Area
- 163 acres
- Type
- Oligotrophic
- Trend
- ↑ Improving
Next lake in Bayfield County
Eagle Lake is a 163-acre cold, clear oligotrophic lake in Bayfield County, Wisconsin with a maximum depth of 52 feet. Water quality is graded B based on 1 sampling years through 2026. Overall water quality is improving over recent sampling years. The lake supports 6 documented fish species including Musky, Panfish, and Largemouth Bass. Compared to the 23 other monitored lakes in Bayfield County, Eagle Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2026-06-14. Grade methodology: LakeGrade methodology.
Watch Eagle Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Grade onlyLow algae
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)
Crystal clear, you can see 17 ft down. Phosphorus level: 14.6 µg/L. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 17 ft | Not graded |
| Phosphorus | 14.6 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 40 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Eagle Lake
Compare lakeside cabins, hotels, and vacation rentals near Eagle Lake in Bayfield 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.
Top-rated places to stay near Eagle Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Wisconsin’s top lakes →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 52 ft |
| Surface Area | 163 acres |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Eagle Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1991. 5 stations on file (most recent sample 2025).
Fish Species (DNR-rated)
Water Quality Trend: ↑ Improving
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +1.036 m/yr | 6 |
| Phosphorus | → Stable | 0 µg/L/yr | 7 |
County Ranking
Ranked #5 of 24 lakes in Bayfield County
Nearby Lakes in Bayfield County
Frequently asked questions about Eagle Lake
What is the water quality grade for Eagle Lake?
- Eagle Lake in Bayfield County, Wisconsin has a water quality grade of B (Good). Water clarity: 17 ft visibility. Phosphorus: 14.6 µg/L. Maximum depth: 52 ft. Surface area: 163 acres.
Is Eagle Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Eagle Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
How deep is Eagle Lake?
- Eagle Lake has a maximum depth of 52 feet. The lake covers 163 acres.
What fish are in Eagle Lake?
- Fish species found in Eagle Lake include Musky, Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike, Walleye. Eagle Lake is located in Bayfield County, Wisconsin.
Explore Eagle Lake across LakeGrade
Fish species and top-graded lakes across Wisconsin
Fish species and best lakes in Bayfield County
Species activity outlook by water temperature and season
Top lakes and where to stay in the Hayward Lakes area
Where to stay at Wisconsin's top lakes, each with its grade
Lakes in the Lake Superior Basin (MN+WI), ranked by water quality
Low nutrients, clear water, excellent for swimming
Wisconsin's cleanest and most-polluted lakes, ranked
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Oligotrophic Lakes in Wisconsin
Where this data comes from
70 measurements from 1 monitoring station, 2020–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Wisconsin Department of Natural Resources
WIDNR_WQX70 samples · 2020–2026
Analytical methods
- Phosphorus by Colorimetry
Monitoring station identifiers (1)
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)
Fish and recreation data from Wisconsin DNR Lakes