Minnesota DNR fisheries surveys · latest July 31, 2025
Species recorded at South Farm Lake
11 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 South Farm 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.
Survey results in full
Minnesota DNR's Standard Survey on July 17, 2023 caught 5.00 walleye per gill net at South Farm Lake. Length samples in the latest survey that recorded them ran 8–24 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows South Farm Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is stable. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
13 surveys on file from MN DNR Fisheries. Most recent: 2025-07-31 (Targeted Survey).
13 surveys on file · most recent 2025-07-31 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Tullibee (Cisco) | 14.63 | 6–13 in 2023-07-17 | 0.38 lb |
| Bluegill | 5.25 | 3–9 in 2023-07-17 | 0.21 lb |
| Yellow Perch | 4.04 | 5–11 in 2023-07-17 | 0.16 lb |
| White Sucker | 2.66 | 6–20 in 2023-07-17 | 2.22 lb |
| Walleye | 2.24 | 8–24 in 2023-07-17 | 1.19 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.
Tullibee (Cisco)
Bluegill
Yellow Perch
White Sucker
From the 2025-07-31 survey
Temperature and dissolved oxygen measurements were collected from the deepest basin in South Farm Lake on July 31st, 2025. This was done to evaluate the quantity and quality of cold, oxygenated water (i.e., oxythermal habitat) available to Cisco, also known as Tullibee, the most sensitive coldwater species present in…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for South Farm Lake. 2 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — South FarmFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — South FarmFish Stocking History · MN DNR LakeFinder
Common questions
What fish are in South Farm Lake?
Minnesota DNR's Standard Survey on July 17, 2023 caught 5.00 walleye per gill net at South Farm Lake. Length samples in the latest survey that recorded them ran 8–24 inches. Minnesota DNR lists 11 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 South Farm Lake last surveyed?
The most recent fisheries survey on file for South Farm Lake is dated July 31, 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 South Farm Lake stocked?
Minnesota DNR publishes a stocking history for South Farm 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 South Farm Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows South Farm Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is stable. 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 South Farm Lake
Top-rated places to stay near South Farm Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
Planning a trip to South Farm Lake?
Get lake water-quality updates plus the best cabin & lodging deals near South Farm Lake — straight to your inbox. No spam, unsubscribe anytime.