Koma Lake
Lake County, Minnesota250 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Koma Lake. Here is what has been measured.
- 14 ft max depth
- Limited data
Koma Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 5 ft visibility. Maximum depth: 14 ft. Surface area: 250.09 acres.
Minnesota DNR's Standard Survey on July 26, 2013 caught 7.83 walleye per gill net at Koma Lake. Length samples in the latest survey that recorded them ran 6–17 inches. DNR survey details →
Koma Lake is a 250-acre lake in Lake County, Minnesota with a maximum depth of 14 feet. The lake supports 8 documented fish species including bluegill, burbot, and lake whitefish. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-07-31. Methodology: how these readings are compared.
What Koma Lake is good for
From access and monitoring records, not editorial picks.
- Fishing8 species recorded
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Koma 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 Koma Lake
These are the measurements Minnesota PCA publishes for Koma 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 5 ft. TSI 54.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| 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 Koma Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on July 26, 2013 caught 7.83 walleye per gill net at Koma Lake. Length samples in the latest survey that recorded them ran 6–17 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Koma Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
1 survey on file from MN DNR Fisheries. Most recent: 2013-07-26 (Standard Survey).
1 survey on file · most recent 2013-07-26 (Standard Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Walleye | 7.83 | 6–17 in 2013-07-26 | 0.58 lb |
| White Sucker | 7.33 | 7–22 in 2013-07-26 | 2.5 lb |
| Northern Pike | 1.00 | 19–28 in 2013-07-26 | 2.31 lb |
| Yellow Perch | 1.00 | 5–7 in 2013-07-26 | 0.12 lb |
| Rock Bass | 0.67 | 6–8 in 2013-07-26 | 0.37 lb |
CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and is not a weekly bite report.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Walleye
White Sucker
Northern Pike
Yellow Perch
From the 2013-07-26 survey
Koma Lake is 250 acres and has a maximum depth of 15.5 feet. The lake is located over 20 miles northeast of Isabella, Minnesota and entirely within the Boundary Waters Canoe Area and Wilderness. The lake is accessible via 2 portage routes. The first access being a series of three portages (24 rods, 48 rods, and 129…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Koma Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — KomaFisheries Lake Survey · MN DNR LakeFinder
Lake Details
Max depth
14 ft
Surface area
250 acres
Shoreline
5.9 mi
Littoral zone
100%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
41 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,552 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Koma Lake
Compare lakeside cabins, hotels, and vacation rentals near Koma 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 Koma Lake
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Fish Species
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Fishing Koma Lake
Nearby Lakes in Lake County
Frequently asked questions about Koma Lake
Where is Koma Lake?
- Koma 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 Koma Lake?
- Koma Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 5 ft visibility. Maximum depth: 14 ft. Surface area: 250.09 acres.
Is Koma Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Koma Lake?
- Koma Lake has a maximum depth of 14 feet. The lake covers 250.09 acres.
What fish are in Koma Lake?
- Fish species found in Koma Lake include bluegill, burbot, lake whitefish, northern pike, rock bass, walleye, white sucker, yellow perch. Koma Lake is located in Lake County, Minnesota.
What did the DNR fisheries survey find at Koma Lake?
- Minnesota DNR's Standard Survey on July 26, 2013 caught 7.83 walleye per gill net at Koma Lake. Length samples in the latest survey that recorded them ran 6–17 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Koma Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Koma Lake?
- Public access to Koma 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 Koma Lake across LakeQuality
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Where this data comes from
1 measurement from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA1 sample · 2024
Analytical methods
- Field measurement/observation, generic method
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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder