Eden Lake
Stearns County, MinnesotaHypereutrophic
Eden Lake grades an F: every scored parameter (clarity and phosphorus) rates poorly, placing it among the most stressed lakes monitored in Minnesota. The two scored sub-grades — clarity and phosphorus — track close together, so neither one is dragging the average down.
Hypereutrophic conditions mean the lake is operating at the upper end of the productivity scale, with all the bloom risk that implies. Eden Lake is unusually deep for Minnesota at 77 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. The lake's 278 acres and 2.5 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Within the 55 graded lakes of Stearns County, Eden Lake sits at rank 55, near the bottom of the county list.
Eden Lake has no invasive species recorded in Minnesota state databases as of 2023, though prevention practices still apply at all access points. The fishery includes walleye among the lake's 16 documented species — a notable draw for Minnesota anglers. A documented public access point at Eden Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The lake has a long ice-out record — 45 observations on file, with a median ice-out around Apr 7. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2023-10-19. Grade methodology: LakeGrade methodology.
Track Eden Lake
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 3 ft of visibility. Phosphorus level: 179.5 µg/L. Trophic State Index: 70.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 ft | F |
| Phosphorus | 179.5 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 70 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 77 ft |
| Average Depth | 18.6 ft |
| Surface Area | 278.23 acres |
| Shoreline Length | 2.5 mi |
| Littoral Zone | 45% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Eden Lake (14-day solunar calendar)
→ Is it safe to eat fish from Eden Lake? (mercury & PFAS guide)
→ Eden Lake fishing regulations (limits, seasons, special rules)
Ice Season
Historical ice data from Minnesota DNR (94 observations).
Estimated open water season: 236 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2001-03-09 (2001) | 2013-05-06 (2013) |
| Ice-In | 1991-11-04 (1991) | 1998-12-21 (1998) |
Most recent ice-out: 2022-04-18
Location
County Ranking
Ranked #55 of 55 lakes in Stearns County
Cleaner Lakes Within 30 Miles
Eden Lake holds Grade F. 5 nearby lakes hold higher grades.
- BPirz LakeStearns County · mi · Two grade letters higher (F → B)
- BBig LakeStearns County · mi · Two grade letters higher (F → B)
- DNorth Brown'S LakeStearns County · mi · Higher grade (F → D)
- DRice LakeStearns County · mi · Higher grade (F → D)
- DCedar Island LakeStearns County · mi · Higher grade (F → D)
Nearby Lakes in Stearns County
More Minnesota Lake Rankings
State Parks Near Eden Lake
Other Grade F Lakes in Minnesota
DNR Fisheries Survey Summary
11 surveys on file from MN DNR Fisheries. Most recent: 2024-06-10 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Yellow Perch | 48.96 | 0.14 lb |
| Black Bullhead | 31.48 | 0.5 lb |
| Bluegill | 20.35 | 0.24 lb |
| Largemouth Bass | 19.47 | 1.39 lb |
| Black Crappie | 13.48 | 0.25 lb |
| CNM | 6.05 | — |
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.
Yellow Perch
Black Bullhead
Bluegill
Largemouth Bass
From the 2024-06-10 survey
Eden Lake is located in south-central Stearns County, north of Eden Valley. It is the second in a series of lakes that outlet north to join the Sauk River Chain of Lakes. A large, mostly agricultural watershed (over 24,000 acres) drains into Eden Lake. The resulting nutrient load has resulted in impaired water…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Eden Lake. 3 reports on file.
- —Fisheries Lake Survey — EdenFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — EdenFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — EdenPublic Water Access Sites · MN DNR LakeFinder
EPA Impairment Status
Eden Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN73-0150-00 · Official waterbody report
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: 2023-10-19
Monitoring stations: 1