Minnesota DNR fisheries surveys · latest September 24, 2025
Species recorded at Ann Lake
16 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 Ann 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
1 public boat landing is recorded on Ann Lake. 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 July 23, 2025 caught 3.53 largemouth bass per hour of electrofishing at Ann Lake. Length samples in the latest survey that recorded them ran 4–19 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Ann Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is improving. 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: 2025-09-24 (Targeted Survey).
12 surveys on file · most recent 2025-09-24 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Black Bullhead | 86.19 | 5–20 in 2016-08-01 | 0.32 lb |
| Bluegill | 18.36 | 3–9 in 2016-08-01 | 0.17 lb |
| Yellow Perch | 17.95 | 5–9 in 2016-08-01 | 0.19 lb |
| Green Sunfish | 16.80 | 4 in 2016-08-01 | 0.05 lb |
| Black Crappie | 16.52 | 4–13 in 2016-08-01 | 0.25 lb |
| Largemouth Bass | 12.27 | 4–19 in 2016-08-01 | 0.79 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
Bluegill
Yellow Perch
Green Sunfish
From the 2025-09-24 survey
Ann Lake is a popular fishing lake located three miles south of Howard Lake in southern Wright County. The 386-acre lake has a maximum depth of 18.5 feet and a ten-year average water clarity of 3.3 feet. There is one public access located on the west side. The Walleye fishery of Ann Lake has been managed by stocking…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Ann Lake. 3 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — AnnFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — AnnFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — AnnPublic Water Access Sites · MN DNR LakeFinder
Common questions
What fish are in Ann Lake?
Minnesota DNR's Targeted Survey on July 23, 2025 caught 3.53 largemouth bass per hour of electrofishing at Ann Lake. Length samples in the latest survey that recorded them ran 4–19 inches. Minnesota DNR lists 16 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 Ann Lake last surveyed?
The most recent fisheries survey on file for Ann Lake is dated September 24, 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 Ann Lake stocked?
Minnesota DNR publishes a stocking history for Ann 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 Ann Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Ann Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is improving. 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 Ann Lake
Top-rated places to stay near Ann Lake
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