Wilkins Lake
Aitkin County, MinnesotaLimited DataMesotrophic
Wilkins Lake comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth.
Mesotrophic conditions dominate at Wilkins Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake bottoms out at 39 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. Wilkins Lake covers 349 acres alongside 3.6 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Within Aitkin County's 53 graded waters, Wilkins Lake sits at rank 13, near the top of the local distribution.
No invasive species are currently listed at Wilkins Lake — the lake remains off the Minnesota infested-waters roster. The fishery includes walleye among the lake's 14 documented species — a notable draw for Minnesota anglers. A documented public access point at Wilkins Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Ice-out has been recorded 24 times at Wilkins Lake, with a median around Apr 17. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2022-08-04. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 13 ft. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 13 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 40 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 39 ft |
| Average Depth | 20 ft |
| Surface Area | 348.86 acres |
| Shoreline Length | 3.6 mi |
| Littoral Zone | 30% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Wilkins Lake (14-day solunar calendar)
→ Is it safe to eat fish from Wilkins Lake? (mercury & PFAS guide)
→ Wilkins Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.075 m/yr | 3 |
Ice Season
Historical ice data from Minnesota DNR (26 observations).
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2000-03-27 (2000) | 2013-05-12 (2013) |
| Ice-In | 2014-11-21 (2014) | 2015-12-23 (2015) |
Most recent ice-out: 2015-04-11
Location
County Ranking
Ranked #13 of 53 lakes in Aitkin County
Nearby Lakes in Aitkin County
More Minnesota Lake Rankings
State Parks Near Wilkins Lake
Other Grade B Lakes in Minnesota
Mesotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
11 surveys on file from MN DNR Fisheries. Most recent: 2024-07-29 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluntnose Minnow | 63.10 | — |
| Bluegill | 32.66 | 0.2 lb |
| BNS | 15.88 | — |
| Largemouth Bass | 7.50 | 0.77 lb |
| MMS | 6.91 | — |
| Yellow Perch | 5.44 | 0.22 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Bluegill
Largemouth Bass
Yellow Perch
From the 2024-07-29 survey
Wilkins Lake is moderately sized (372 acres) with clear water and is located in central Aitkin County. There is a township-owned public access with a concrete log ramp without a dock, located on the east side of the lake. The surrounding area is a mixture of forest-covered rolling hills with various wetland types…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Wilkins Lake. 4 reports on file.
- —Fisheries Lake Survey — WilkinsFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Wilkins (0086)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — WilkinsFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — WilkinsPublic Water Access Sites · MN DNR LakeFinder
EPA Impairment Status
Wilkins Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN01-0105-00 · Official waterbody report · Matched by proximity (1.01 km)
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Lake details from Minnesota DNR LakeFinder
Ice data from Minnesota DNR Climate
Most recent sample: 2022-08-04
Monitoring stations: 3