---
type: lake
name: "Island Lake"
county: "Cass"
nearest_town: "Longville"
lake_type: "lake"
acres: 184
max_depth_ft: 40
latitude: 46.89135
longitude: -94.32577
lake_score: 63
dnr_lake_id: "11025700"
url: https://www.minnelakes.org/lakes/cass-county/island-lake-longville
---

# Island Lake

Lake in Cass County, Minnesota, near Longville

- **Surface Area**: 184 acres
- **Max Depth**: 40 ft
- **Shoreline**: 3.5 miles
- **Water Clarity**: 18 ft
- **Lake Type**: lake
- **Public Access**: 1 public boat launch (concrete)
- **Lake Score**: 63/100 (composite of public data, not a visitor rating)

## About

Island Lake is an 184-acre lake near Longville in Cass County, Minnesota. It reaches 40 feet at its deepest point, and has roughly 3.5 miles of shoreline. DNR surveys put average water clarity at about 18 feet, which is exceptionally clear for Minnesota.

Minnesota DNR fisheries surveys list 13 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. Special fishing regulations apply to sunfish, and they override the statewide limits. The most recent fisheries survey on file dates to 2023.

There is one public boat launch (concrete surface) managed by the Minnesota DNR. Ice typically goes out around April 18, based on 23 years of DNR ice-out records.

## Access

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

## Fishing

- **Species on DNR survey**: 13
- **Stocked**: Yes
- **Last DNR survey**: 2023
- **Special regulations**: Yes
- **Ice fishing**: Yes

### Special Regulations

- **Sunfish**: Daily limit five.

## Activities

Fishing, Ice Fishing, Boating, Paddling

## Amenities

Boat Ramp

## Fish Species

Walleye, Northern Pike, Largemouth Bass, Black Crappie, Bluegill, Pumpkinseed, Yellow Perch, Rock Bass, Bowfin, Brown Bullhead, Hybrid Sunfish, White Sucker, Yellow Bullhead

## Ice-Out

- **Median ice-out**: April 18
- **Years of record**: 23
- **Earliest**: 2016-04-01
- **Latest**: 2022-05-05

## Nearby Lakes

- [Sand Lake](https://www.minnelakes.org/lakes/cass-county/sand-lake) - 0.9 miles, 149 acres
- [Sand Lake](https://www.minnelakes.org/lakes/cass-county/sand-lake-longville) - 1.4 miles, 41 acres
- [Long Lake](https://www.minnelakes.org/lakes/cass-county/long-lake-hackensack) - 1.4 miles, 246 acres
- [Ponto Lake](https://www.minnelakes.org/lakes/cass-county/ponto-lake) - 1.5 miles, 388 acres
- [Blackwater Lake](https://www.minnelakes.org/lakes/cass-county/blackwater-lake) - 1.6 miles, 771 acres
- [Widow Lake](https://www.minnelakes.org/lakes/cass-county/widow-lake) - 2 miles, 198 acres

## Links

- [Directions](https://www.google.com/maps/dir/?api=1&destination=46.89135,-94.32577)
- [Minnesota DNR LakeFinder](https://www.dnr.state.mn.us/lakefind/lake.html?id=11025700)
- [All lakes in Cass County](https://www.minnelakes.org/lakes/cass-county)

---
*Source: [MinneLakes.org](https://www.minnelakes.org/lakes/cass-county/island-lake-longville)*