Fisher Lake
Scott County, MinnesotaView mapDirections
Minnesota PCA publishes the water-quality measurements for Fisher Lake. Here is what has been measured.
- Hypereutrophic
- 34 ft max depth
- Limited data
Fisher Lake in Scott County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 1.1 ft visibility. Phosphorus: 286 µg/L. Chlorophyll-a (algae): 34.5 µg/L.
Fisher Lake is a highly nutrient-loaded hypereutrophic lake in Scott County, Minnesota with an estimated average depth of about 34 feet. Overall water quality is improving over recent sampling years. Limited fish-species data available. No public access — the lake is private or restricted. Compared to the 20 other monitored lakes in Scott County, Fisher Lake ranks #19 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-10-22. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Fisher Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Fisher Lake
These are the measurements Minnesota PCA publishes for Fisher Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 1.1 ft of visibility. Phosphorus 286 µg/L. Chlorophyll-a 34.5 µg/L. TSI 75.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.1ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 286µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 34.5µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 75 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Fisher Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Fisher Lake typically sits around 58°F at the surface in October. Summer average is about 74°F. Usually warmest in Jul (about 75°F) and coldest in Oct (about 58°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (58°F) to its warmest (75°F).
Typical surface water temperature by month, from 46 field readings (2023–2024) via the EPA Water Quality Portal. See the full Fisher Lake water temperature breakdown →
Lake Details
Max depth
~34 ft est.
Public access
No
Listed by Minnesota PCA
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Minnesota has not published bathymetry for Fisher Lake.
Lake Size & Watershed
Watershed (drainage) area
38 sq mi
HydroLAKES / HydroSHEDS
Surface area
247 acres
HydroLAKES / HydroSHEDS
Shoreline
2.5 mi
HydroLAKES / HydroSHEDS
Elevation
679 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Stays via Stay22
Stays near Fisher Lake
Compare lakeside cabins, hotels, and vacation rentals near Fisher Lake in Scott County, Minnesota — 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Fisher Lake are listed below.
Top-rated places to stay near Fisher Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
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 Minnesota’s top lakes →
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Fishing Fisher Lake
Water quality readings over time
2 seasons of samples on record (2023–2024). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving2 years
Nearby Lakes in Scott County
Frequently asked questions about Fisher Lake
Where is Fisher Lake?
- Fisher Lake is a lake in Scott County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Fisher Lake?
- Fisher Lake in Scott County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 1.1 ft visibility. Phosphorus: 286 µg/L. Chlorophyll-a (algae): 34.5 µg/L.
Is Fisher Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Fisher Lake?
- Fisher Lake typically sits around 58°F at the surface in October, from 46 EPA Water Quality Portal field readings (2023–2024). That is a typical value for the month, not a live reading.
How deep is Fisher Lake?
- No published bathymetric survey covers Fisher Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 34 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Can I fish at Fisher Lake?
- Public access to Fisher Lake is listed as no on the lake record, so confirm before you make the trip. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.
Explore Fisher Lake across LakeQuality
Fish species and the cleanest lakes across Minnesota
Fish species and best lakes in Scott County
Species activity outlook by water temperature and season
Where to stay at Minnesota's top lakes, each with its readings
Lakes in the Minnesota River Watershed, ranked by water quality
Minnesota's cleanest lakes, ranked on agency measurements
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State Parks Near Fisher Lake
Other Lakes in Minnesota
Hypereutrophic Lakes in Minnesota
Where this data comes from
102 measurements from 2 monitoring stations, 2023–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA102 samples · 2023–2024
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Colorimetry
- Analysis of Chlorophyll in Periphyton and Plankton
Monitoring station identifiers (2)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder