Trout Lake
Itasca County, Minnesota, near Grand Rapids. DNR lake ID 31041000.
Trout Lake is a 1,743-acre lake in Itasca County, Minnesota, near Grand Rapids. Its deepest point reaches 157 ft, and about 22% of the lake is shallower than 15 feet. Summer water clarity averages 16.9 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, smallmouth bass, black crappie, bluegill.
Buying or selling on Trout 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 | 31041000 |
|---|---|
| County | Itasca County, near Grand Rapids |
| Surface area | 1,743 acres |
| Maximum depth | 157 ft |
| Share under 15 ft | 22% |
| Water clarity (summer) | 16.9 ft through 2024 |
| Phosphorus (summer) | 10.2 µg/L |
| Algae, chlorophyll-a (summer) | 1.5 µg/L |
| Nutrient class | Oligotrophic |
| Clarity trend | Clearer (2016 to 2024) |
| 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 2024: clarity 16.9 ft, phosphorus 10.2 µg/L, algae (chlorophyll-a) 1.5 µg/L. Using the Carlson trophic state index, Trout Lake rates as oligotrophic. Summer clarity trend 2016 to 2024: clearer.
Fishing on Trout Lake
The most recent DNR standard fish survey was in 2015 (11 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 | 0.4 | 0.3 to 0.9 |
| Northern pike | trap | 0.07 | n/a |
| Yellow perch | trap | 0.53 | 0.7 to 3.7 |
| Black crappie | trap | 0.6 | 0.3 to 1.7 |
| Bluegill | trap | 22.8 | 3.7 to 42.9 |
| Largemouth bass | trap | 0.8 | 0.4 to 1.4 |
| Smallmouth bass | trap | 0.07 | 0.1 to 0.6 |
| Pumpkinseed | trap | 1.07 | 1.6 to 6.9 |
| Rock bass | trap | 2.13 | 0.7 to 3.3 |
| Hybrid sunfish | trap | 4.73 | n/a |
Largest fish measured in recent DNR samples: Walleye 29.0 in (2022), Northern pike 34.0 in (2022), Smallmouth bass 17.0 in (2017), Largemouth bass 12.0 in (2017).
Game and panfish documented since 2005: Walleye, Northern pike, Largemouth bass, Smallmouth bass, Black crappie, Bluegill, Yellow perch, Pumpkinseed, Hybrid sunfish, Rock bass, Green sunfish, Tullibee (cisco), Lake trout, White sucker, Yellow 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
No public water access on DNR record.
Nearby lakes
- Lower Spring Lake 0.5 mi, Itasca County
- Day Lake 0.8 mi, Itasca County
- Upper Spring Lake 0.9 mi, Itasca County
- Bee Cee Lake 1.4 mi, Itasca County
- Little Trout Lake 1.7 mi, Itasca County
- Moore Lake 1.9 mi, Itasca County
- Moonshine Lake 1.9 mi, Itasca County
- Little Long Lake 2.0 mi, Itasca County
Questions about Trout Lake
How deep is Trout Lake?
Trout Lake reaches a maximum depth of 157 ft according to Minnesota DNR records. About 22% of the lake is shallower than 15 feet.
How big is Trout Lake?
Trout Lake covers about 1,743 acres in Itasca County, Minnesota.
How clear is Trout Lake?
Summer water clarity on Trout Lake averages 16.9 feet (Secchi depth) in MPCA monitoring through 2024. Its trophic state is oligotrophic.
Does Trout Lake have zebra mussels or other invasive species?
Trout 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 Trout Lake?
Minnesota DNR surveys document walleye, northern pike, largemouth bass, smallmouth bass, black crappie, bluegill, yellow perch, pumpkinseed, hybrid sunfish, rock bass in Trout Lake. The most recent standard survey was in 2015.
Are there lake homes for sale on Trout Lake?
Homes on Trout 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 Trout Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Trout Lake?
A mid-size lake with room for boating and fishing, about 22% shallow shoreline under 15 feet, and summer clarity around 16.9 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Trout Lake?
No lake-specific regulation was found for Trout Lake in Minnesota Rules or the DNR sunfish list. Statewide and zone regulations apply.
Ask us about Trout 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 2015), 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.