Gegoka Lake
Gegoka Lake in Lake County, Minnesota has a water quality grade of C (Fair). 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.
- Clarity
- 3.4 ft
- Typical in August
- 71°F
- Max depth
- 10 ft
- Area
- 145 acres
- Type
- Eutrophic
- Public access
- Yes
Next lake in Lake County
Gegoka Lake is a 145-acre productive, nutrient-rich eutrophic lake in Lake County, Minnesota with a maximum depth of 10 feet. Water quality is graded C based on 2 sampling years through 2025. 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. Grade methodology: LakeGrade 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.
Generally safe for swimming, moderate water quality
Water Quality Grade: C (Fair)
Murky, only visible to about 3.4 ft. Phosphorus level: 23.5 µg/L. Chlorophyll-a: 9.4 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.4 ft | Not graded |
| Phosphorus | 23.5 µg/L | Good |
| Chlorophyll-a (Algae) | 9.4 µg/L | Fair |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay 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.
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Water Temperature
Gegoka Lake typically sits around 71°F at the surface in August. 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.
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
| Characteristic | Value |
|---|---|
| Maximum Depth | 10 ft |
| Surface Area | 145 acres |
| Shoreline Length | 5.1 mi |
| Littoral Zone | 110% |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Gegoka LakePublic
Fish Species
Click a species to see every graded 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
Source: EPA ATTAINS assessment unit MN38-0573-00 · Official waterbody report
County Ranking
Ranked #32 of 35 lakes in Lake County
Nearby Lakes in Lake County
Frequently asked questions about Gegoka Lake
What is the water quality grade for Gegoka Lake?
- Gegoka Lake in Lake County, Minnesota has a water quality grade of C (Fair). 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?
- Generally safe for swimming, moderate water quality. Gegoka Lake has a water quality grade of C (Fair). Algae concentration (chlorophyll-a) is 9.4 µg/L. Always check local health department advisories before swimming.
What is the water temperature of Gegoka Lake?
- Gegoka Lake typically sits around 71°F at the surface in August, 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.
Explore Gegoka Lake across LakeGrade
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High nutrients, frequent algae, reduced clarity
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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)
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
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