Lake of Isles
Itasca County, Minnesota, near Bigfork. DNR lake ID 31050600.
Lake of Isles is a 69.6-acre lake in Itasca County, Minnesota, near Bigfork. Its deepest point reaches 48 ft, and about 74% of the lake is shallower than 15 feet. Summer water clarity averages 10.8 feet in Minnesota Pollution Control Agency monitoring, which places it in the mesotrophic nutrient class. It is not on the DNR infested waters list as of September 2026. DNR surveys document walleye, northern pike, smallmouth bass, yellow perch.
Buying or selling on Lake of Isles? 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 | 31050600 |
|---|---|
| County | Itasca County, near Bigfork |
| Surface area | 69.6 acres |
| Maximum depth | 48 ft |
| Mean depth | 19.5 ft |
| Share under 15 ft | 74% |
| Water clarity (summer) | 10.8 ft through 2019 |
| Nutrient class | Mesotrophic |
| Invasive species | Not on DNR infested waters list (Sept 2026) |
| Public water accesses | 0 |
Water quality
Summer averages from Minnesota Pollution Control Agency monitoring through 2019: clarity 10.8 ft. Using the Carlson trophic state index, Lake of Isles rates as mesotrophic.
Fishing on Lake of Isles
The most recent DNR standard fish survey was in 2011 (15 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 | 1.25 | 0.5 to 2.3 |
| Walleye | trap | 0.11 | 0.3 to 0.5 |
| Northern pike | gill | 10.0 | 3.5 to 8.9 |
| Northern pike | trap | 1.78 | n/a |
| Yellow perch | gill | 7.75 | 1.0 to 10.3 |
| Yellow perch | trap | 0.33 | 0.3 to 1.2 |
| Pumpkinseed | gill | 0.25 | n/a |
| Pumpkinseed | trap | 0.44 | 1.5 to 6.8 |
Walleye catch was within the typical range for similar lakes in that survey.
Largest fish measured in recent DNR samples: Northern pike 33.0 in (2011), Walleye 19.0 in (2011), Smallmouth bass 18.0 in (2006).
Game and panfish documented since 2005: Walleye, Northern pike, Smallmouth bass, Yellow perch, Pumpkinseed, White sucker.
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
No public water access on DNR record.
Nearby lakes
- Marie Lake 0.5 mi, Itasca County
- Cedar Lake 1.3 mi, Itasca County
- Coon-Sandwick Lake 1.4 mi, Itasca County
- Homestad Lake 2.1 mi, Itasca County
- Erickson Lake 2.7 mi, Itasca County
- Cameron Lake 2.9 mi, Itasca County
- Gale Lake 3.5 mi, Itasca County
- Bass Lake 3.9 mi, Itasca County
Questions about Lake of Isles
How deep is Lake of Isles?
Lake of Isles reaches a maximum depth of 48 ft according to Minnesota DNR records. About 74% of the lake is shallower than 15 feet.
How big is Lake of Isles?
Lake of Isles covers about 69.6 acres in Itasca County, Minnesota.
How clear is Lake of Isles?
Summer water clarity on Lake of Isles averages 10.8 feet (Secchi depth) in MPCA monitoring through 2019. Its trophic state is mesotrophic.
Does Lake of Isles have zebra mussels or other invasive species?
Lake of Isles 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 Lake of Isles?
Minnesota DNR surveys document walleye, northern pike, smallmouth bass, yellow perch, pumpkinseed, white sucker in Lake of Isles. The most recent standard survey was in 2011.
How is the walleye population on Lake of Isles?
In Minnesota DNR net surveys from 1991 to 2011, walleye numbers on Lake of Isles 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 Lake of Isles?
Homes on Lake of Isles 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 Lake of Isles and nearby lakes, including off-market opportunities when available.
What is it like to live on Lake of Isles?
Small, quiet water suited to paddling and fishing, about 74% shallow shoreline under 15 feet, and summer clarity around 10.8 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Lake of Isles?
No lake-specific regulation was found for Lake of Isles in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Ask us about Lake of Isles
Whether you’re buying, selling, or just curious, our team works Itasca County lakes every day. Send us a note or call (218) 656-6469.
Sources: Minnesota DNR LakeFinder records, DNR fish surveys (latest 2011), 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.