Cattyman Lake
Lake County, Minnesota17 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Cattyman Lake. Here is what has been measured.
- 9 ft max depth
- Limited data
Cattyman Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 7 ft visibility. Maximum depth: 9 ft. Surface area: 16.75 acres.
Minnesota DNR's Standard Survey on July 16, 1982 caught 1.00 walleye per gill net at Cattyman Lake. DNR survey details →
Cattyman Lake is a 17-acre lake in Lake County, Minnesota with a maximum depth of 9 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 2025-05-24. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Cattyman 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 Cattyman Lake
These are the measurements Minnesota PCA publishes for Cattyman Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Moderate clarity, visible to about 7 ft. TSI 49.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 7ft | 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. | 49 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Cattyman Lake
Answers come straight from the public measurements and survey records on this page.
Minnesota DNR's Standard Survey on July 16, 1982 caught 1.00 walleye per gill net at Cattyman Lake.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Cattyman Lake’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is stable. 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: 1982-07-16 (Standard Survey).
1 survey on file · most recent 1982-07-16 (Standard Survey)
44 years old| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Yellow Perch | 10.00 | 0.12 lb | |
| Northern Pike | 5.00 | 1.8 lb | |
| White Sucker | 4.00 | 2.94 lb | |
| Rock Bass | 2.00 | 0.12 lb | |
| Walleye | 1.00 | 0.88 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.
From the 1982-07-16 survey
Cattyman lake contains above average populations of northern pike and perch; average populations of suckers and rock bass; and a below average walleye population.
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Cattyman Lake. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — CattymanFisheries Lake Survey · MN DNR LakeFinder
Lake Details
Max depth
9 ft
Surface area
17 acres
Shoreline
0.9 mi
Littoral zone
100%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
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Fishing Cattyman Lake
Water Quality Trend: Stable
Based on 5 years of monitoring (2020–2025).
Water clarity
Stable5 years
Nearby Lakes in Lake County
Frequently asked questions about Cattyman Lake
Where is Cattyman Lake?
- Cattyman 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 Cattyman Lake?
- Cattyman Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 7 ft visibility. Maximum depth: 9 ft. Surface area: 16.75 acres.
Is Cattyman Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Cattyman Lake?
- Cattyman Lake has a maximum depth of 9 feet. The lake covers 16.75 acres.
What did the DNR fisheries survey find at Cattyman Lake?
- Minnesota DNR's Standard Survey on July 16, 1982 caught 1.00 walleye per gill net at Cattyman Lake. A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Cattyman Lake’s water-quality measurements separately, and the water-quality trend over 5 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.
Can I fish at Cattyman Lake?
- Public access to Cattyman 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.
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Where this data comes from
12 measurements from 5 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA12 samples · 2020–2025
Analytical methods
- Field measurement/observation, generic method
Monitoring station identifiers (5)
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 details from Minnesota DNR LakeFinder