Clear Lake
Aitkin County, Minnesota, near Glen. DNR lake ID 01009300.
Clear Lake is a 573.5-acre lake in Aitkin County, Minnesota, near Glen. Its deepest point reaches 24 ft, and about 63% of the lake is shallower than 15 feet. Summer water clarity averages 16.0 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, largemouth bass, smallmouth bass, black crappie, bluegill.
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Quick facts
| DNR lake ID | 01009300 |
|---|---|
| County | Aitkin County, near Glen |
| Surface area | 573.5 acres |
| Maximum depth | 24 ft |
| Mean depth | 6.0 ft |
| Share under 15 ft | 63% |
| Water clarity (summer) | 16.0 ft through 2025 |
| Phosphorus (summer) | 13.0 µg/L |
| Algae, chlorophyll-a (summer) | 4.3 µg/L |
| Nutrient class | Mesotrophic |
| Clarity trend | Steady (2016 to 2025) |
| 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 2025: clarity 16.0 ft, phosphorus 13.0 µg/L, algae (chlorophyll-a) 4.3 µg/L. Using the Carlson trophic state index, Clear Lake rates as mesotrophic. Summer clarity trend 2016 to 2025: steady.
Fishing on Clear Lake
The most recent DNR standard fish survey was in 2019 (7 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 | 1.22 | 0.5 to 3.0 |
| Walleye | trap | 0.5 | 0.3 to 0.5 |
| Northern pike | gill | 9.11 | 4.8 to 12.5 |
| Northern pike | trap | 1.17 | n/a |
| Yellow perch | gill | 7.67 | 2.0 to 21.5 |
| Yellow perch | trap | 0.33 | 0.3 to 2.8 |
| Black crappie | gill | 1.89 | 1.0 to 4.8 |
| Black crappie | trap | 1.08 | 0.8 to 4.3 |
| Bluegill | gill | 34.22 | n/a |
| Bluegill | trap | 48.67 | 8.3 to 50.1 |
| Largemouth bass | gill | 4.22 | 0.3 to 1.8 |
| Largemouth bass | trap | 1.5 | 0.3 to 1.4 |
| Smallmouth bass | gill | 0.11 | 0.3 to 1.3 |
| Pumpkinseed | gill | 7.0 | n/a |
| Pumpkinseed | trap | 2.75 | 2.8 to 10.3 |
| Rock bass | gill | 1.89 | 0.3 to 1.2 |
| Rock bass | trap | 1.5 | 0.5 to 1.5 |
| Hybrid sunfish | gill | 4.89 | n/a |
| Hybrid sunfish | trap | 8.0 | n/a |
Walleye catch was within the typical range for similar lakes in that survey.
Largest fish measured in recent DNR samples: Walleye 28.0 in (2019), Northern pike 35.0 in (2019), Largemouth bass 20.0 in (2019), Smallmouth bass 11.0 in (2019).
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, White sucker, Yellow bullhead, Brown bullhead, Black bullhead.
Fishing regulations
- Sunfish daily limit 10. (DNR Quality Sunfish Initiative)
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
- Clear Lake: 1 concrete slab launch ramp, 1 dock, 12 trailer spaces. 0.5 mile East of Glen on Glen Township Road, then 1 mile North and East on Glen Township Road. Directions
DNR water access records (2023). Confirm current conditions with the DNR.
Nearby lakes
- Sugar Lake 1.7 mi, Aitkin County
- Swamp Lake 2.1 mi, Aitkin County
- Rabbit Lake 2.8 mi, Aitkin County
- Long Lake 4.1 mi, Aitkin County
- Twenty Lake 4.3 mi, Aitkin County
- Sweetman Lake 4.7 mi, Aitkin County
- Monson Lake 4.9 mi, Aitkin County
- Lily Lake 5.0 mi, Aitkin County
Questions about Clear Lake
How deep is Clear Lake?
Clear Lake reaches a maximum depth of 24 ft according to Minnesota DNR records. About 63% of the lake is shallower than 15 feet.
How big is Clear Lake?
Clear Lake covers about 573.5 acres in Aitkin County, Minnesota.
How clear is Clear Lake?
Summer water clarity on Clear Lake averages 16.0 feet (Secchi depth) in MPCA monitoring through 2025. Its trophic state is mesotrophic.
Does Clear Lake have zebra mussels or other invasive species?
Clear 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 Clear Lake?
Minnesota DNR surveys document walleye, northern pike, largemouth bass, smallmouth bass, black crappie, bluegill, yellow perch, pumpkinseed, hybrid sunfish, rock bass in Clear Lake. The most recent standard survey was in 2019.
Where is the public boat access on Clear Lake?
Clear Lake has 1 public water access site on DNR record: Clear Lake.
How is the walleye population on Clear Lake?
In Minnesota DNR net surveys from 1991 to 2019, walleye numbers on Clear 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 Clear Lake?
Homes on Clear 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 Clear Lake and nearby lakes, including off-market opportunities when available.
What is it like to live on Clear Lake?
A mid-size lake with room for boating and fishing, about 63% shallow shoreline under 15 feet, and summer clarity around 16.0 feet. Conditions vary by property, so walk the frontage and ask us what similar homes have sold for.
Are there special fishing regulations on Clear Lake?
Yes. Sunfish daily limit 10.
Ask us about Clear Lake
Whether you’re buying, selling, or just curious, our team works Aitkin County lakes every day. Send us a note or call (218) 656-6469.
Sources: Minnesota DNR LakeFinder records, DNR fish surveys (latest 2019), 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.