---
type: lake
name: "St. Olaf Lake"
county: "Waseca"
nearest_town: "Mankato"
lake_type: "lake"
acres: 91
max_depth_ft: 33
latitude: 43.90283
longitude: -93.41724
lake_score: 52
dnr_lake_id: "81000300"
url: https://www.minnelakes.org/lakes/waseca-county/st-olaf-lake
---

# St. Olaf Lake

Lake in Waseca County, Minnesota, near Mankato

- **Surface Area**: 91 acres
- **Max Depth**: 33 ft
- **Shoreline**: 1.6 miles
- **Water Clarity**: 5.3 ft
- **Lake Type**: lake
- **Public Access**: 1 public boat launch (concrete)
- **Lake Score**: 52/100 (composite of public data, not a visitor rating)

## About

St. Olaf Lake is a 91-acre lake near Mankato in Waseca County, Minnesota. It reaches 33 feet at its deepest point, and has roughly 1.6 miles of shoreline. DNR surveys put average water clarity at about 5.3 feet.

Minnesota DNR fisheries surveys list 11 fish species here, including northern pike, largemouth bass, black crappie, white crappie, bluegill, and pumpkinseed. The DNR has stocking records for the lake, so check the stocking report for the most recent species and year classes. The most recent fisheries survey on file dates to 2022.

There is one public boat launch (concrete surface) managed by the county. Ice typically goes out around March 31, based on 15 years of DNR ice-out records.

## Access

- **Public access**: 1 public boat launch (concrete)
- **Managed by**: county
- **Launch fee**: Free at DNR public water accesses

## Fishing

- **Species on DNR survey**: 11
- **Stocked**: Yes
- **Last DNR survey**: 2022
- **Special regulations**: No
- **Ice fishing**: Yes

## Activities

Fishing, Ice Fishing, Paddling

## Amenities

Boat Ramp

## Fish Species

Northern Pike, Largemouth Bass, Black Crappie, White Crappie, Bluegill, Pumpkinseed, Yellow Perch, Common Carp, Hybrid Sunfish, White Sucker, Yellow Bullhead

## Ice-Out

- **Median ice-out**: March 31
- **Years of record**: 15
- **Earliest**: 2024-03-03
- **Latest**: 2013-04-22

## Nearby Lakes

- [Beaver Lake](https://www.minnelakes.org/lakes/steele-county/beaver-lake) - 3.4 miles, 98 acres
- [Lake Geneva](https://www.minnelakes.org/lakes/freeborn-county/lake-geneva) - 10.4 miles, 1,884 acres
- [Clear Lake](https://www.minnelakes.org/lakes/waseca-county/clear-lake) - 13.1 miles, 649 acres
- [Freeborn Lake](https://www.minnelakes.org/lakes/freeborn-county/freeborn-lake) - 13.3 miles, 2,034 acres
- [Loon Lake](https://www.minnelakes.org/lakes/waseca-county/loon-lake) - 13.3 miles, 125 acres
- [Fountain Lake](https://www.minnelakes.org/lakes/freeborn-county/fountain-lake) - 16.5 miles, 522 acres

## Links

- [Directions](https://www.google.com/maps/dir/?api=1&destination=43.90283,-93.41724)
- [Minnesota DNR LakeFinder](https://www.dnr.state.mn.us/lakefind/lake.html?id=81000300)
- [All lakes in Waseca County](https://www.minnelakes.org/lakes/waseca-county)

---
*Source: [MinneLakes.org](https://www.minnelakes.org/lakes/waseca-county/st-olaf-lake)*