Minnesota · DNR survey data
St. Olaf Lake
St. Olaf Lake covers 91 acres in Waseca County, running to 33 feet, last surveyed by the DNR in 2022. The Minnesota DNR has not published bathymetry for this lake, so there is no depth map here, just the survey record: what the nets held and how big it ran.
DNR survey data
Fish species
No recent survey rating.
Largemouth bassOne of the best around153.4per hr (electrofishing)8"Typical20"Biggest
Lengths measured · 152 fish
Recent · 2022Lengths measured · 152 fish
2022Lengths measured · 101 fish
2016Lengths measured · 1 fish
2006Only 1 fish measured that year — too few to read as a shape.
Lengths measured · 4 fish
2002Only 4 fish measured that year — too few to read as a shape.
Northern pikeStocked · 2025Just a few5.7per gill net25"Typical35"Biggest
Lengths measured · 17 fish
Recent · 2022Lengths measured · 17 fish
2022Lengths measured · 20 fish
2016Lengths measured · 43 fish
2010Lengths measured · 27 fish
2006BluegillOne of the best around165.6per trap net6"Typical8"Biggest
Lengths measured · 1398 fish
Recent · 2022Lengths measured · 1398 fish
2022Lengths measured · 520 fish
2016Lengths measured · 1075 fish
2010Lengths measured · 1121 fish
2006CrappieJust a few2.5per trap net8"Typical13"Biggest
Lengths measured · 50 fish
Recent · 2022Lengths measured · 50 fish
2022Lengths measured · 70 fish
2016Lengths measured · 558 fish
2010Lengths measured · 352 fish
2006Yellow perchJust a few1per gill net6"Typical6"Biggest
Lengths measured · 11 fish
Recent · 2022Lengths measured · 11 fish
2022Lengths measured · 1 fish
2016Only 1 fish measured that year — too few to read as a shape.
Lengths measured · 16 fish
2006Lengths measured · 37 fish
2002No recent survey rating.
Rates come from standard DNR survey gear (gill nets, trap nets, electrofishing), judged against statewide benchmarks for the same gear — which is why the same number of fish per net can read differently for two species. Where the standard gear can't count a species reliably, the page shows presence and size only. Typical is the middle fish of those measured. Open a row for the full length spread, survey by survey. You can read every number on this page without an app or an account.
DNR stocking records
Stocking history
| Year | Species | Stocked |
|---|---|---|
| 2025 | Northern Pike | 2,500 |
| 2024 | Northern Pike | 1,275 |
| 2023 | Northern Pike | 26,676 fry |
| 2022 | Northern Pike | 25,000 fry |
| 2021 | Northern Pike | 27,616 fry |
| 2019 | Northern Pike | 25,000 fry |
| 2018 | Northern Pike | 32,895 fry |
| 2017 | Northern Pike | 25,000 fry |
| 2016 | Northern Pike | 27,818 fry |
Recent reports
St. Olaf Lake fishing reports
Recent reports on St. Olaf Lake from guides, tournaments and regular anglers. Anything posted in the last two weeks also bumps the matching spots on the live map, so you'll see a "matches a recent report" tag on them.
Public water access
Getting on the water
- St. Olaf Lake (trailer launch)
- St.Olaf Lake Fishing Pier (fishing pier)
Within 30 miles
Nearby lakes
- Beaver Lake · 98 ac · 3.4 mi
- Clear Lake · 649 ac · 13.1 mi
- Loon Lake · 125 ac · 13.3 mi
- Freeborn Lake · 2,034 ac · 13.6 mi
- Kohlmeier Lake · 35 ac · 14.3 mi
- White Lake · 168 ac · 16.7 mi
- Fountain Lake · 522 ac · 16.8 mi
- Morin Lake · 21 ac · 17.8 mi
Quick answers
Frequently asked questions
Is there a depth map for St. Olaf Lake?
The Minnesota DNR has not published bathymetry for St. Olaf Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in St. Olaf Lake?
The most recent DNR survey (2022) recorded walleye, largemouth bass, northern pike, bluegill, crappie, yellow perch, sauger.
Does St. Olaf Lake have a public access?
Yes. St. Olaf Lake has 2 public access sites, including St. Olaf Lake (trailer launch).
Is St. Olaf Lake stocked?
Yes. The DNR stocked northern pike in 2025; the stocking table on this page lists every year back to 2016.
When was St. Olaf Lake last surveyed?
The Minnesota DNR last surveyed St. Olaf Lake in 2022, the most recent of 11 surveys on record.
Survey numbers are the Minnesota DNR's. How this site reads them →
Page updated .