Osakis Lake
Todd County, Minnesota, near Osakis. DNR lake ID 77021500.
Osakis Lake is a 6,389-acre lake in Todd County, Minnesota, near Osakis. Its deepest point reaches 73 ft, and about 53% of the lake is shallower than 15 feet. Summer water clarity averages 9.8 feet in Minnesota Pollution Control Agency monitoring, which places it in the eutrophic nutrient class. The DNR lists it for zebra mussel. DNR surveys document walleye, northern pike, largemouth bass, smallmouth bass, black crappie, bluegill.
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Quick facts
| DNR lake ID | 77021500 |
|---|---|
| County | Todd County, near Osakis |
| Surface area | 6,389 acres |
| Maximum depth | 73 ft |
| Mean depth | 20.0 ft |
| Share under 15 ft | 53% |
| Water clarity (summer) | 9.8 ft through 2025 |
| Phosphorus (summer) | 105.2 µg/L |
| Algae, chlorophyll-a (summer) | 15.8 µg/L |
| Nutrient class | Eutrophic |
| Clarity trend | Clearer (2016 to 2025) |
| Invasive species | zebra mussel |
| Public water accesses | 3 |
Water quality
Summer averages from Minnesota Pollution Control Agency monitoring through 2025: clarity 9.8 ft, phosphorus 105.2 µg/L, algae (chlorophyll-a) 15.8 µg/L. Using the Carlson trophic state index, Osakis Lake rates as eutrophic. Summer clarity trend 2016 to 2025: clearer.
Fishing on Osakis Lake
The most recent DNR standard fish survey was in 2022 (4 years ago). Catch per net is compared with the DNR’s typical range for lakes of the same type.
| Species | Net | Catch per net | Typical range |
|---|---|---|---|
| Walleye | gill | 6.17 | 4.0 to 9.6 |
| Walleye | trap | 0.13 | 0.3 to 0.9 |
| Northern pike | gill | 5.33 | 3.0 to 7.9 |
| Northern pike | trap | 0.27 | n/a |
| Yellow perch | gill | 19.92 | 7.1 to 33.9 |
| Yellow perch | trap | 0.07 | 0.7 to 3.7 |
| Black crappie | gill | 3.17 | 0.2 to 1.1 |
| Black crappie | trap | 1.8 | 0.3 to 1.7 |
| Bluegill | gill | 6.17 | n/a |
| Bluegill | trap | 11.53 | 3.7 to 42.9 |
| Largemouth bass | gill | 0.08 | 0.3 to 1.2 |
| Largemouth bass | trap | 0.47 | 0.4 to 1.4 |
| Smallmouth bass | gill | 0.83 | 0.2 to 0.9 |
| Tullibee (cisco) | gill | 0.17 | 0.5 to 5.2 |
| Pumpkinseed | gill | 1.67 | n/a |
| Pumpkinseed | trap | 2.8 | 1.6 to 6.9 |
| Rock bass | gill | 0.83 | 1.0 to 6.6 |
| Hybrid sunfish | gill | 0.17 | n/a |
| Hybrid sunfish | trap | 0.07 | n/a |
Walleye catch was within the typical range for similar lakes in that survey.
Largest fish measured in recent DNR samples: Northern pike 31.0 in (2022), Smallmouth bass 19.0 in (2022), Walleye 26.0 in (2022), Largemouth bass 19.0 in (2022).
Game and panfish documented since 2005: Walleye, Northern pike, Largemouth bass, Smallmouth bass, Black crappie, Bluegill, Yellow perch, Pumpkinseed, Hybrid sunfish, Rock bass, Green sunfish, Tullibee (cisco), Bowfin, Common carp, White sucker, Yellow bullhead, Brown bullhead, Black bullhead.
Fishing regulations
- Walleye must be 15 in or longer. Sunfish daily limit 10. (Minnesota Rules 6264.0400, April 2026)
Regulations change. Confirm with the DNR before fishing.
Invasive species
On the Minnesota DNR infested waters list for: zebra mussel (listed 2016).
Public boat access
- Osakis Lake (NW): 1 concrete slab launch ramp, 1 dock, 10 trailer spaces. Take CR 3 north out of Osakis for 1.3 miles to CR 10. Follow CR 10 east for 2.7 miles to the access. Directions
- Osakis Lake, Battle Point: 1 concrete slab launch ramp, 1 dock, 24 trailer spaces. In Battle Point County Park, 2 mi E of the city of Osakis on Mn Hwy 27, then 3 mi N on Cnty Rd 37, then 2 mi W on Twp Rd to E shore. Directions
- Osakis Lake (S): 2 concrete slab launch ramps, 1 dock, 26 trailer spaces. In the city of Osakis, on the south shore of Osakis Lake. Directions
DNR water access records (2023). Confirm current conditions with the DNR.
Nearby lakes
- Faille Lake 3.3 mi, Todd County
- Little Osakis Lake 4.2 mi, Todd County
- Maple Lake 5.0 mi, Todd County
- Guernsey Lake 6.3 mi, Todd County
- Little Sauk Lake 6.9 mi, Todd County
- William Lake 7.6 mi, Todd County
- Juergens Lake 8.9 mi, Todd County
- Long Lake 8.9 mi, Todd County
Questions about Osakis Lake
How deep is Osakis Lake?
Osakis Lake reaches a maximum depth of 73 ft according to Minnesota DNR records. About 53% of the lake is shallower than 15 feet.
How big is Osakis Lake?
Osakis Lake covers about 6,389 acres in Todd County, Minnesota.
How clear is Osakis Lake?
Summer water clarity on Osakis Lake averages 9.8 feet (Secchi depth) in MPCA monitoring through 2025. Its trophic state is eutrophic.
Does Osakis Lake have zebra mussels or other invasive species?
The Minnesota DNR infested waters list includes Osakis Lake for zebra mussel.
What fish are in Osakis Lake?
Minnesota DNR surveys document walleye, northern pike, largemouth bass, smallmouth bass, black crappie, bluegill, yellow perch, pumpkinseed, hybrid sunfish, rock bass in Osakis Lake. The most recent standard survey was in 2022.
Where is the public boat access on Osakis Lake?
Osakis Lake has 3 public water access sites on DNR record: Osakis Lake (NW); Osakis Lake, Battle Point; Osakis Lake (S).
How is the walleye population on Osakis Lake?
In Minnesota DNR net surveys from 1994 to 2022, walleye numbers on Osakis Lake ran mostly within the typical range for similar lakes. Nets measure how many fish a lake holds, not where they’re biting, so local guides are the best source for current fishing.
Are there lake homes for sale on Osakis Lake?
Homes on Osakis Lake come up for sale throughout the year, and some sell before they’re ever publicly advertised. Tell us what you’re looking for and our agents will run a custom search and send you matching homes on Osakis Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Osakis Lake?
Big water with room for long boat rides and wake sports, about 53% shallow shoreline under 15 feet, and summer clarity around 9.8 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Osakis Lake?
Yes. Walleye must be 15 in or longer. Sunfish daily limit 10.
Ask us about Osakis Lake
Whether you’re buying, selling, or just curious, our team works Todd County lakes every day. Send us a note or call (218) 656-6469.
Sources: Minnesota DNR LakeFinder records, DNR fish surveys (latest 2022), DNR infested waters list (Sept 2026), Minnesota Rules 6264.0400 (April 2026), MPCA monitoring via the Water Quality Portal, DNR water access records (2023), LAGOS-US. Lakewide information from public data; it does not describe any specific property. Verify shoreline, bottom type, and depth at any frontage.