Toe Lake
Lake County, MinnesotaLimited DataMesotrophic
The LakeGrade rubric puts Toe Lake at a C: clarity at 7.0 ft, phosphorus readings still being added, and a TSI of 49 signal an intermediate trophic state. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.
Mesotrophic conditions dominate at Toe Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake's 95 ft maximum depth is in the upper tier for Minnesota — deep enough for cold-water fish to find refuge in summer. At 122 acres, Toe Lake fits the Minnesota median for monitored lakes, with 4.5 miles of shoreline. Within the 142 graded lakes of Lake County, Toe Lake sits at rank 113, near the bottom of the county list.
No invasive species are currently listed at Toe Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Toe Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. 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 2023-07-10. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 7 ft. Trophic State Index: 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 95 ft |
| Surface Area | 121.53 acres |
| Shoreline Length | 4.5 mi |
| Littoral Zone | 37% |
| Public Access | No |
Water Quality Trend: ↓ Declining
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.717 m/yr | 4 |
Location
County Ranking
Ranked #113 of 142 lakes in Lake County
Nearby Lakes in Lake County
More Minnesota Lake Rankings
Other Grade C Lakes in Minnesota
Mesotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
2 surveys on file from MN DNR Fisheries. Most recent: 1985-09-08 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| LKW | 18.84 | 0.88 lb |
| White Sucker | 2.54 | 0.54 lb |
| Northern Pike | 1.38 | 7.5 lb |
| Yellow Perch | 0.12 | 0.1 lb |
| Largemouth Bass | 0.12 | 0.1 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
From the 1985-09-08 survey
Fish populations are dominated by large numbers of small whitefish and smaller, but substantial numbers of big northern pike and small white suckers. Yellow perch and largemouth bass also present.
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Toe Lake. 1 report on file.
- —Fisheries Lake Survey — EddyFisheries Lake Survey · MN DNR LakeFinder
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Lake details from Minnesota DNR LakeFinder
Most recent sample: 2023-07-10
Monitoring stations: 1