Trout Lake
Itasca County, Minnesota, near Coleraine. DNR lake ID 31021600.
Trout Lake is a 1,862-acre lake in Itasca County, Minnesota, near Coleraine. Its deepest point reaches 135 ft, and about 24% of the lake is shallower than 15 feet. Summer water clarity averages 17.9 feet in Minnesota Pollution Control Agency monitoring, which places it in the oligotrophic nutrient class. The DNR lists it for flowering rush, zebra mussel. 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 | 31021600 |
|---|---|
| County | Itasca County, near Coleraine |
| Surface area | 1,862 acres |
| Maximum depth | 135 ft |
| Share under 15 ft | 24% |
| Water clarity (summer) | 17.9 ft through 2025 |
| Nutrient class | Oligotrophic |
| Clarity trend | Murkier (2016 to 2025) |
| Invasive species | flowering rush, zebra mussel |
| Public water accesses | 3 |
Water quality
Summer averages from Minnesota Pollution Control Agency monitoring through 2025: clarity 17.9 ft. Using the Carlson trophic state index, Trout Lake rates as oligotrophic. Summer clarity trend 2016 to 2025: murkier.
Fishing on Trout Lake
The most recent DNR standard fish survey was in 2018 (8 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 | 5.07 | 4.0 to 9.6 |
| Walleye | trap | 0.36 | 0.3 to 0.9 |
| Northern pike | gill | 6.47 | 3.0 to 7.9 |
| Northern pike | trap | 0.14 | n/a |
| Yellow perch | gill | 6.13 | 7.1 to 33.9 |
| Yellow perch | trap | 1.5 | 0.7 to 3.7 |
| Black crappie | gill | 0.4 | 0.2 to 1.1 |
| Black crappie | trap | 1.79 | 0.3 to 1.7 |
| Bluegill | gill | 1.87 | n/a |
| Bluegill | trap | 13.21 | 3.7 to 42.9 |
| Largemouth bass | gill | 0.53 | 0.3 to 1.2 |
| Largemouth bass | trap | 0.29 | 0.4 to 1.4 |
| Smallmouth bass | gill | 8.93 | 0.2 to 0.9 |
| Smallmouth bass | trap | 0.14 | 0.1 to 0.6 |
| Pumpkinseed | gill | 1.93 | n/a |
| Pumpkinseed | trap | 3.36 | 1.6 to 6.9 |
| Rock bass | gill | 9.53 | 1.0 to 6.6 |
| Rock bass | trap | 1.93 | 0.7 to 3.3 |
Walleye catch was within the typical range for similar lakes in that survey.
Largest fish measured in recent DNR samples: Walleye 26.0 in (2018), Smallmouth bass 19.0 in (2018), Northern pike 29.0 in (2018), Largemouth bass 17.0 in (2018).
Game and panfish documented since 2005: Walleye, Northern pike, Largemouth bass, Smallmouth bass, Black crappie, Bluegill, Yellow perch, Pumpkinseed, Hybrid sunfish, Rock bass, Tullibee (cisco), Bowfin, White sucker, Yellow bullhead, Brown 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
On the Minnesota DNR infested waters list for: flowering rush (listed 2015), zebra mussel (listed 2023).
Public boat access
- Trout Lake, Longyear Park: 1 concrete slab launch ramp, 1 dock, 5 trailer spaces. In Coleraine, 2 blocks off US Highway #169, on the northwest tip of Trout Lake. Directions
- Trout Lake, Kom-on-in Beach: 1 concrete slab launch ramp, 1 dock, 4 trailer spaces. From US 169 in Coleraine follow CR 10 south for 3.7 miles to the access. Directions
- Trout Lake (N): 2 concrete slab launch ramps, 1 dock, 17 trailer spaces. In Coleraine off of Roosevelt St. Directions
DNR water access records (2023). Confirm current conditions with the DNR.
Nearby lakes
- Mud Lake 2.4 mi, Itasca County
- Bass Lake 2.8 mi, Itasca County
- Blackberry Lake 3.8 mi, Itasca County
- Clearwater Lake 3.8 mi, Itasca County
- Round Lake 3.9 mi, Itasca County
- Holman Lake 4.1 mi, Itasca County
- South Twin Lake 4.7 mi, Itasca County
- North Twin Lake 5.2 mi, Itasca County
Questions about Trout Lake
How deep is Trout Lake?
Trout Lake reaches a maximum depth of 135 ft according to Minnesota DNR records. About 24% of the lake is shallower than 15 feet.
How big is Trout Lake?
Trout Lake covers about 1,862 acres in Itasca County, Minnesota.
How clear is Trout Lake?
Summer water clarity on Trout Lake averages 17.9 feet (Secchi depth) in MPCA monitoring through 2025. Its trophic state is oligotrophic.
Does Trout Lake have zebra mussels or other invasive species?
The Minnesota DNR infested waters list includes Trout Lake for flowering rush, zebra mussel.
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 2018.
Where is the public boat access on Trout Lake?
Trout Lake has 3 public water access sites on DNR record: Trout Lake, Longyear Park; Trout Lake, Kom-on-in Beach; Trout Lake (N).
How is the walleye population on Trout Lake?
In Minnesota DNR net surveys from 1993 to 2018, walleye numbers on Trout Lake 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 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 24% shallow shoreline under 15 feet, and summer clarity around 17.9 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 2018), 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.