Malberg Lake
Lake County, Minnesota398 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Malberg Lake. Here is what has been measured.
- 37 ft max depth
- Limited data
Malberg Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 5.5 ft visibility. Maximum depth: 37 ft. Surface area: 398.3 acres.
Minnesota DNR's Standard Survey on July 29, 2013 caught 3.25 walleye per gill net at Malberg Lake. Length samples in the latest survey that recorded them ran 7–26 inches. DNR survey details →
Malberg Lake is a 398-acre lake in Lake County, Minnesota with a maximum depth of 37 feet. Limited fish-species data available. No public access — the lake is private or restricted.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-08-02. Methodology: how these readings are compared.
What Malberg Lake is good for
From access and monitoring records, not editorial picks.
- Deep water37 ft surveyed max depth
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Malberg 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 Malberg Lake
These are the measurements Minnesota PCA publishes for Malberg 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 5.5 ft. TSI 53.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.5ft | 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. | 53 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Malberg Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on July 29, 2013 caught 3.25 walleye per gill net at Malberg Lake. Length samples in the latest survey that recorded them ran 7–26 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Malberg Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
3 surveys on file from MN DNR Fisheries. Most recent: 2025-08-14 (Targeted Survey).
3 surveys on file · most recent 2025-08-14 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Walleye | 4.63 | 7–26 in 2013-07-29 | 1.1 lb |
| White Sucker | 3.55 | 8–21 in 2013-07-29 | 2.43 lb |
| Tullibee (Cisco) | 2.87 | ||
| Northern Pike | 1.23 | 18–43 in 2013-07-29 | 4.4 lb |
| Yellow Perch | 0.83 | 5–9 in 2013-07-29 | 0.16 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 2025-08-14 survey
Temperature and dissolved oxygen (DO) measurements were collected in Malberg Lake on August 14th, 2025, to evaluate the quantity and quality of cold, oxygenated water (i.e., oxythermal habitat) available to Lake Whitefish, the most sensitive coldwater species present in this lake. During the summer, Lake Whitefish…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Malberg Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — MalbergFisheries Lake Survey · MN DNR LakeFinder
Lake Details
Max depth
37 ft
Surface area
398 acres
Shoreline
14.9 mi
Littoral zone
78%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
73 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,549 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Malberg Lake
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Top-rated places to stay near Malberg Lake
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Fishing Malberg Lake
Nearby Lakes in Lake County
Frequently asked questions about Malberg Lake
Where is Malberg Lake?
- Malberg 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 Malberg Lake?
- Malberg Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 5.5 ft visibility. Maximum depth: 37 ft. Surface area: 398.3 acres.
Is Malberg Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Malberg Lake?
- Malberg Lake has a maximum depth of 37 feet. The lake covers 398.3 acres.
What did the DNR fisheries survey find at Malberg Lake?
- Minnesota DNR's Standard Survey on July 29, 2013 caught 3.25 walleye per gill net at Malberg Lake. Length samples in the latest survey that recorded them ran 7–26 inches. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Malberg Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Malberg Lake?
- Public access to Malberg 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 Malberg Lake across LakeQuality
Depth, room, public access, and the state wake-sport rules
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Fish species and best lakes in Lake County
Species activity outlook by water temperature and season
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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