Island Lake
About Island Lake
Island Lake is a 358-acre lake near Longville in Cass County, Minnesota. It reaches 45 feet at its deepest point, and has roughly 5.8 miles of shoreline. DNR surveys put average water clarity at about 9.8 feet.
Minnesota DNR fisheries surveys list 12 fish species here, including walleye, northern pike, largemouth bass, black 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.
The DNR lists public water access for the lake; confirm the launch type before towing a trailer in. Ice typically goes out around April 15, based on 5 years of DNR ice-out records.
Plan Your Visit to Island Lake
- 358 acres, up to 45 feet deep, near Longville
- Public access on record — bring a boat you can hand-launch unless you confirm a ramp
- Game fish on the DNR survey: walleye, northern pike, largemouth bass, black crappie, bluegill, and pumpkinseed
- Average water clarity around 9.8 feet
Access & Fees
- Public access
- Public access on record
- Launch fee
- Free at DNR accesses
- Managed by
- county
Conditions
- Surface area
- 358 acres
- Max depth
- 45 ft
- Shoreline
- 5.8 mi
- Water clarity
- 9.8 ft
- Shallows (under 15 ft)
- 59 acres
Rules & Regulations
- A Minnesota fishing license is required for anglers 16 and older
- Drain plugs must be out and all water drained before leaving any access; remove aquatic plants from boats and trailers
- Children under 10 must wear a life jacket on a boat that is underway
Facilities
No developed facilities on record. Plan to be self-sufficient.
Best For
- Walleye fishing
- Ice fishing
- Ice is never completely safe — check thickness yourself before walking or driving on any lake
Angler's Report
Minnesota DNR LakeFinder- Species on survey
- 12
- Game fish
- 7
- Stocked
- Yes
- Last DNR survey
- 2022
- Special regulations
- No
- Fishing pier
- No
- Ice fishing
- Yes
- Boat launch
- No
Fishing data: Minnesota Department of Natural Resources. Regulations change — confirm with the current DNR fishing regulations.
Ice-Out History
- Median ice-out
- April 15
- Years of record
- 5
- Earliest
- April 10, 2005
- Latest
- May 6, 2022
- Most recent
- May 6, 2022
See every lake on the ice-out tracker. Ice-out data: Minnesota DNR State Climatology Office.
Activities
Amenities
Fish Species
Plan your trip to Island Lake
Compare Island Lake against the top-ranked lakes nearby, then map your route.
Nearby Lakes
Mitten Lake
28 out of 100 Lake ScoreCass · Longville113 acres
1 miles away
Twenty-Six Lake
8 out of 100 Lake ScoreCass · Outing109 acres
1.3 miles away
Stevens Lake
52 out of 100 Lake ScoreCass · Longville100 acres
1.8 miles away
Little Bass Lake
52 out of 100 Lake ScoreCass · Inguadona136 acres
2.6 miles away
Upper Trelipe Lake
66 out of 100 Lake ScoreCass · Longville421 acres
3.3 miles away
Thunder Lake
67 out of 100 Lake ScoreCass · Remer1,347 acres
3.4 miles away
Frequently Asked Questions
Where is Island Lake?
Island Lake is in Cass County, Minnesota, near Longville. It covers 358 acres and reaches 45 feet deep.
How big and how deep is Island Lake?
Island Lake covers 358 acres with about 5.8 miles of shoreline. Its maximum depth is 45 feet.
What fish can you catch at Island Lake?
Minnesota DNR surveys list Walleye, Northern Pike, Largemouth Bass, Black Crappie, Bluegill, Pumpkinseed, and Rock Bass and other species. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Island Lake?
Public access is on record, but not a trailer ramp: public access on record.
Can you swim at Island Lake?
There is no mapped public swim beach at Island Lake. Minnesota's public waters are open to swimming where you have legal access, but there are no lifeguards or water-quality monitoring away from designated beaches.
Is Island Lake stocked?
Yes. The Minnesota DNR has stocking records for Island Lake; species and numbers vary by year, so see the stocking report on DNR LakeFinder.
When does the ice go out on Island Lake?
The median ice-out date is April 15, from 5 years of Minnesota DNR records. The earliest on record is April 10, 2005 and the latest is May 6, 2022.