Gegoka Lake
Lake County, Minnesota145 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Gegoka Lake. Here is what has been measured.
- Eutrophic
- Impaired · Mercury
- 10 ft max depth
- Public access
- Limited data
Gegoka Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 3.4 ft visibility. Phosphorus: 23.5 µg/L. Chlorophyll-a (algae): 9.4 µg/L. Maximum depth: 10 ft. Surface area: 145.13 acres.
Gegoka Lake is a 145-acre productive, nutrient-rich eutrophic lake in Lake County, Minnesota with a maximum depth of 10 feet. The lake supports 9 documented fish species including black crappie, bluegill, and hybrid sunfish. Public access is available with 1 public boat landing. Compared to the 34 other monitored lakes in Lake County, Gegoka Lake ranks #32 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-17. Methodology: how these readings are compared.
What Gegoka Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Fishing9 species recorded
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. Gegoka Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Whether Gegoka 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 Gegoka Lake
These are the measurements Minnesota PCA publishes for Gegoka Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 3.4 ft. Phosphorus 23.5 µg/L. Chlorophyll-a 9.4 µg/L. TSI 54.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.4ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 23.5µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 9.4µg/L | Fair GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 54 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Gegoka Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Gegoka Lake typically sits around 63°F at the surface in September. Summer average is about 68°F. Usually warmest in Aug (about 71°F) and coldest in Sep (about 63°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (63°F) to its warmest (71°F).
Typical surface water temperature by month, from 21 field readings (2019–2025) via the EPA Water Quality Portal. See the full Gegoka Lake water temperature breakdown →
Lake Details
Max depth
10 ft
Surface area
145 acres
Shoreline
5.1 mi
Public access
Yes
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
7 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,765 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Gegoka LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Gegoka Lake
Compare lakeside cabins, hotels, and vacation rentals near Gegoka Lake in Lake 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.
Top-rated places to stay near Gegoka Lake
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Fish Species
Click a species to see every lake where it is documented.
Fishing Gegoka Lake
EPA Impairment Status
Gegoka Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Fish consumption.
Source: EPA ATTAINS assessment unit MN38-0573-00 · Official waterbody report
Nearby Lakes in Lake County
Frequently asked questions about Gegoka Lake
Where is Gegoka Lake?
- Gegoka Lake is a lake in Lake County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Gegoka Lake?
- Gegoka Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 3.4 ft visibility. Phosphorus: 23.5 µg/L. Chlorophyll-a (algae): 9.4 µg/L. Maximum depth: 10 ft. Surface area: 145.13 acres.
Is Gegoka Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Gegoka Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
What is the water temperature of Gegoka Lake?
- Gegoka Lake typically sits around 63°F at the surface in September, from 21 EPA Water Quality Portal field readings (2019–2025). That is a typical value for the month, not a live reading.
How deep is Gegoka Lake?
- Gegoka Lake has a maximum depth of 10 feet. The lake covers 145.13 acres.
What fish are in Gegoka Lake?
- Fish species found in Gegoka Lake include black crappie, bluegill, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, walleye, white sucker, yellow perch. Gegoka Lake is located in Lake County, Minnesota.
Are there boat ramps on Gegoka Lake?
- Gegoka Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Gegoka Lake. Public access is listed as yes.
Can I fish at Gegoka Lake?
- Gegoka Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. 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 Gegoka Lake across LakeQuality
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Where this data comes from
20 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA20 samples · 2025
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (1)
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder
Named boat-access points from the USGS National Boat Ramps inventory