Widow Lake
Cass County, Minnesota, near Longville. DNR lake ID 11027300.
Widow Lake is a 197.5-acre lake in Cass County, Minnesota, near Longville. Its deepest point reaches 46 ft, and about 37% of the lake is shallower than 15 feet. Summer water clarity averages 19.4 feet in Minnesota Pollution Control Agency monitoring, which places it in the oligotrophic nutrient class. It is not on the DNR infested waters list as of September 2026. DNR surveys document walleye, northern pike, largemouth bass, black crappie, bluegill, yellow perch.
Buying or selling on Widow Lake? Ask us what lakeshore here actually sells for, which stretches of shoreline buyers compete for, and what’s coming up before it’s listed.
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Quick facts
| DNR lake ID | 11027300 |
|---|---|
| County | Cass County, near Longville |
| Surface area | 197.5 acres |
| Maximum depth | 46 ft |
| Share under 15 ft | 37% |
| Water clarity (summer) | 19.4 ft through 2025 |
| Nutrient class | Oligotrophic |
| Clarity trend | Steady (2016 to 2025) |
| Invasive species | Not on DNR infested waters list (Sept 2026) |
| Public water accesses | 1 |
Water quality
Summer averages from Minnesota Pollution Control Agency monitoring through 2025: clarity 19.4 ft. Using the Carlson trophic state index, Widow Lake rates as oligotrophic. Summer clarity trend 2016 to 2025: steady.
Fishing on Widow 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 | trap | 0.56 | 0.3 to 0.7 |
| Northern pike | trap | 0.78 | n/a |
| Yellow perch | trap | 0.33 | 0.5 to 3.3 |
| Black crappie | trap | 7.67 | 0.7 to 3.4 |
| Bluegill | trap | 40.67 | 6.1 to 46.6 |
| Largemouth bass | trap | 1.44 | 0.3 to 1.3 |
| Pumpkinseed | trap | 4.89 | 2.0 to 8.5 |
| Rock bass | trap | 1.11 | 0.5 to 1.8 |
| Hybrid sunfish | trap | 0.11 | n/a |
Largest fish measured in recent DNR samples: Walleye 22.0 in (2022), Northern pike 17.0 in (2022), Largemouth bass 17.0 in (2022).
Game and panfish documented since 2005: Walleye, Northern pike, Largemouth bass, Black crappie, Bluegill, Yellow perch, Pumpkinseed, Hybrid sunfish, Rock bass, Bowfin, Yellow bullhead, Brown bullhead.
Fishing regulations
No lake-specific regulation found in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Regulations change. Confirm with the DNR before fishing.
Invasive species
Not on the Minnesota DNR infested waters list as of September 2026. That means no confirmed listing, not a guarantee the lake is free of invasive species.
Public boat access
- Widow Lake: 1 concrete slab launch ramp, 1 dock, 5 trailer spaces. 7 miles South of Longville on MN Hwy. 84, then 2 miles West and North on Cass Co. Rd. #46. Directions
DNR water access records (2023). Confirm current conditions with the DNR.
Nearby lakes
- IXL Lake 0.7 mi, Cass County
- Sand Lake 0.8 mi, Cass County
- Squeedunk Lake 1.3 mi, Cass County
- Sand Lake 1.3 mi, Cass County
- Blackwater Lake 1.5 mi, Cass County
- Little Woman Lake 1.7 mi, Cass County
- Child Lake 1.9 mi, Cass County
- Island Lake 2.0 mi, Cass County
Questions about Widow Lake
How deep is Widow Lake?
Widow Lake reaches a maximum depth of 46 ft according to Minnesota DNR records. About 37% of the lake is shallower than 15 feet.
How big is Widow Lake?
Widow Lake covers about 197.5 acres in Cass County, Minnesota.
How clear is Widow Lake?
Summer water clarity on Widow Lake averages 19.4 feet (Secchi depth) in MPCA monitoring through 2025. Its trophic state is oligotrophic.
Does Widow Lake have zebra mussels or other invasive species?
Widow Lake is not on the Minnesota DNR infested waters list as of September 2026. That means there is no confirmed listing; it is not a guarantee the lake is free of invasive species.
What fish are in Widow Lake?
Minnesota DNR surveys document walleye, northern pike, largemouth bass, black crappie, bluegill, yellow perch, pumpkinseed, hybrid sunfish, rock bass, bowfin in Widow Lake. The most recent standard survey was in 2022.
Where is the public boat access on Widow Lake?
Widow Lake has 1 public water access site on DNR record: Widow Lake.
How is the walleye population on Widow Lake?
In Minnesota DNR net surveys from 1994 to 2020, walleye numbers on Widow 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 Widow Lake?
Homes on Widow 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 Widow Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Widow Lake?
Small, quiet water suited to paddling and fishing, about 37% shallow shoreline under 15 feet, and summer clarity around 19.4 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Widow Lake?
No lake-specific regulation was found for Widow Lake in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Ask us about Widow Lake
Whether you’re buying, selling, or just curious, our team works Cass 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.