Larson Lake
Itasca County, Minnesota, near Effie. DNR lake ID 31031700.
Larson Lake is a 208.2-acre lake in Itasca County, Minnesota, near Effie. Its deepest point reaches 177 ft, and about 25% of the lake is shallower than 15 feet. Summer water clarity averages 21.4 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 northern pike, yellow perch.
Buying or selling on Larson 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 | 31031700 |
|---|---|
| County | Itasca County, near Effie |
| Surface area | 208.2 acres |
| Maximum depth | 177 ft |
| Share under 15 ft | 25% |
| Water clarity (summer) | 21.4 ft through 2021 |
| Phosphorus (summer) | 5.0 µg/L |
| Algae, chlorophyll-a (summer) | 1.5 µg/L |
| Nutrient class | Oligotrophic |
| 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 2021: clarity 21.4 ft, phosphorus 5.0 µg/L, algae (chlorophyll-a) 1.5 µg/L. Using the Carlson trophic state index, Larson Lake rates as oligotrophic.
Fishing on Larson Lake
The most recent DNR standard fish survey was in 2020 (6 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 |
|---|---|---|---|
| Northern pike | gill | 0.5 | 2.2 to 8.7 |
| Yellow perch | gill | 10.5 | 1.5 to 13.8 |
| Yellow perch | trap | 8.89 | 0.4 to 2.3 |
| Pumpkinseed | trap | 3.44 | 1.4 to 5.9 |
Largest fish measured in recent DNR samples: Northern pike 31.0 in (2020), Walleye 22.0 in (2002).
Game and panfish documented since 2005: Northern pike, Yellow perch, Pumpkinseed, Brown trout, White sucker, Black 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
- Larson Lake: 1 concrete slab launch ramp, 1 dock, 4 trailer spaces. Head south from Hwy 1 on Bass Lake Campground Rd for 4 miles to the access. Directions
DNR water access records (2023). Confirm current conditions with the DNR.
Nearby lakes
- Coon Lake 1.3 mi, Itasca County
- Bass Lake 1.7 mi, Itasca County
- Duck Lake 2.0 mi, Itasca County
- Little Coon Lake 2.1 mi, Itasca County
- Sucker Lake 2.5 mi, Itasca County
- Erskine Lake 2.8 mi, Itasca County
- Wilson Lake 3.7 mi, Itasca County
- Raddison Lake 4.0 mi, Itasca County
Questions about Larson Lake
How deep is Larson Lake?
Larson Lake reaches a maximum depth of 177 ft according to Minnesota DNR records. About 25% of the lake is shallower than 15 feet.
How big is Larson Lake?
Larson Lake covers about 208.2 acres in Itasca County, Minnesota.
How clear is Larson Lake?
Summer water clarity on Larson Lake averages 21.4 feet (Secchi depth) in MPCA monitoring through 2021. Its trophic state is oligotrophic.
Does Larson Lake have zebra mussels or other invasive species?
Larson 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 Larson Lake?
Minnesota DNR surveys document northern pike, yellow perch, pumpkinseed, brown trout, white sucker, black bullhead in Larson Lake. The most recent standard survey was in 2020.
Where is the public boat access on Larson Lake?
Larson Lake has 1 public water access site on DNR record: Larson Lake.
Are there lake homes for sale on Larson Lake?
Homes on Larson 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 Larson Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Larson Lake?
Small, quiet water suited to paddling and fishing, about 25% shallow shoreline under 15 feet, and summer clarity around 21.4 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Larson Lake?
No lake-specific regulation was found for Larson Lake in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Ask us about Larson Lake
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 2020), 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.