Minnesota DNR fisheries surveys · latest September 8, 2025
Species recorded at Cottonwood Lake
10 species on the Minnesota DNR list for this lake. A species on the list has been recorded here; it does not mean it is catchable today or in every part of the lake.
Stocking at Cottonwood Lake
Minnesota DNR publishes a stocking history for this lake — which species went in, how many, and in which years. Read the years: a lake stocked in one year is not necessarily stocked in the next.
Getting on the water
Minnesota DNR lists the public access sites, including ramp type and parking, in the documents below.
Survey results in full
Minnesota DNR's Targeted Survey on September 8, 2025 caught 27.00 walleye per gill net at Cottonwood Lake. Length samples in the latest survey that recorded them ran 6–21 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Cottonwood Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
12 surveys on file from MN DNR Fisheries. Most recent: 2025-09-08 (Targeted Survey).
12 surveys on file · most recent 2025-09-08 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Fathead Minnow | 1306.14 | ||
| Black Bullhead | 81.93 | 9–13 in 2025-09-08 | 0.32 lb |
| Walleye | 38.44 | 6–21 in 2025-09-08 | 1.18 lb |
| Yellow Perch | 25.10 | 4–12 in 2025-09-08 | 0.27 lb |
| Green Sunfish | 15.06 | 5–6 in 2012-06-28 | 0.22 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.
Black Bullhead
Walleye
Yellow Perch
Green Sunfish
From the 2025-09-08 survey
A targeted gillnet survey was conducted during early September of 2025 on Cottonwood Lake. We conducted the survey to assess relative abundance and size structure of Northern Pike in Cottonwood Lake. A targeted survey is generally used for sampling a specific kind of fish or time of year (i.e. spawning season, fall…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Cottonwood Lake. 3 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — CottonwoodFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — CottonwoodFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — CottonwoodPublic Water Access Sites · MN DNR LakeFinder
Common questions
What fish are in Cottonwood Lake?
Minnesota DNR's Targeted Survey on September 8, 2025 caught 27.00 walleye per gill net at Cottonwood Lake. Length samples in the latest survey that recorded them ran 6–21 inches. Minnesota DNR lists 10 species for the lake in total. Those are survey results, not a catch report: a net set on one date measures what was in that net.
When was Cottonwood Lake last surveyed?
The most recent fisheries survey on file for Cottonwood Lake is dated September 8, 2025. Survey intervals vary by lake and by species; a gap of several years between surveys is normal and does not mean the record is missing.
Is Cottonwood Lake stocked?
Minnesota DNR publishes a stocking history for Cottonwood Lake. It records which species were released, in what numbers and in which years — the source documents are linked further down this page. A lake can be stocked in some years and not others, so read the years rather than assuming an annual release.
Do the water-quality readings tell me how Cottonwood Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Cottonwood Lake’s water-quality measurements separately. Catch rate is not a swim clearance and is not a weekly bite report.
Before you eat what you catch
Water-quality readings are not a consumption advisory. Mercury and PCB advice for Minnesota waters comes from MDH, and it is issued per species and per size class: a lake with clear, low-nutrient water can still carry a meal limit on larger predator fish.
Where to stay near Cottonwood Lake
Top-rated places to stay near Cottonwood Lake
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