Eagle Lake
Hennepin County, MinnesotaEutrophic
Eagle Lake pulls a D on the LakeGrade rubric — phosphorus loading and limited clarity hold it below the Minnesota average. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Minnesota norms.
At a TSI of 64, Eagle Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. The lake bottoms out at 34 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 296 acres, Eagle Lake fits the Minnesota median for monitored lakes, with 5.1 miles of shoreline. Within Hennepin County's 104 graded lakes, Eagle Lake ranks 57 — below the local median, though not at the bottom.
Eurasian watermilfoil has been documented at Eagle Lake, requiring shoreline management to keep dense mats from crowding native vegetation. Eagle Lake's fishery is anchored by muskellunge, with 17 documented species in total — a destination water for muskie anglers. A documented public access point at Eagle Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Ice-out has been recorded 9 times at Eagle Lake, with a median around Mar 29. The grade is supported by multiple sampling years from Minnesota PCA volunteers and partner agencies, giving the letter a reasonably stable foundation.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-24. Grade methodology: LakeGrade methodology.
Watch Eagle Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 3 ft of visibility. Phosphorus level: 59 µg/L. Chlorophyll-a: 37.5 µg/L. Trophic State Index: 64.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 ft | F |
| Phosphorus | 59 µg/L | C |
| Chlorophyll-a (Algae) | 37.5 µg/L | F |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 34 ft |
| Average Depth | 10.7 ft |
| Surface Area | 296 acres |
| Shoreline Length | 5.1 mi |
| Littoral Zone | 67% |
| Public Access | Yes |
Fish Species
Click a species to see every graded lake where it is documented.
→ Best fishing times for Eagle Lake (14-day solunar calendar)
→ Is it safe to eat fish from Eagle Lake? (mercury & PFAS guide)
→ Eagle Lake fishing regulations (limits, seasons, special rules)
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.164 m/yr | 6 |
| Phosphorus | ↓ Declining | +3.16 µg/L/yr | 5 |
Recreation & Access
Ice Season
Historical ice data from Minnesota DNR (17 observations).
Estimated open water season: 248 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2024-03-04 (2024) | 2018-04-30 (2018) |
| Ice-In | 2018-11-13 (2018) | 2007-01-14 (2007) |
Most recent ice-out: 2026-03-28
Location
County Ranking
Ranked #57 of 104 lakes in Hennepin County
Cleaner Lakes Within 30 Miles
Eagle Lake holds Grade D. 5 nearby lakes hold higher grades.
- BPomerleau LakeHennepin County · mi · Two grade letters higher (D → B)
- BMagda LakeHennepin County · mi · Two grade letters higher (D → B)
- CLost LakeHennepin County · mi · Higher grade (D → C)
- DBass LakeHennepin County · mi · Higher overall water quality score
- DMeadow LakeHennepin County · mi · Higher overall water quality score
Nearby Lakes in Hennepin County
More Minnesota Lake Rankings
State Parks Near Eagle Lake
Other Grade D Lakes in Minnesota
Eutrophic Lakes in Minnesota
DNR Fisheries Survey Summary
15 surveys on file from MN DNR Fisheries. Most recent: 2025-06-30 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| BNS | 56.00 | — |
| Bluegill | 33.93 | 0.14 lb |
| Black Crappie | 13.03 | 0.17 lb |
| Yellow Perch | 12.68 | 0.1 lb |
| Black Bullhead | 8.25 | 0.34 lb |
| Largemouth Bass | 7.43 | 0.73 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
Black Crappie
Yellow Perch
Black Bullhead
From the 2025-06-30 survey
Eagle Lake is a 291-acre lake with a maximum depth of 34 feet. It is located in north central Hennepin County, in the city of Maple Grove. There is a DNR-owned public access on the northeast corner of the lake. Eagle Lake is actively managed for Muskellunge and Walleye, which are stocked to maintain the populations.…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Eagle Lake. 3 reports on file.
- —Fisheries Lake Survey — EagleFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — EagleFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — EaglePublic Water Access Sites · MN DNR LakeFinder
EPA Impairment Status
Eagle 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 MN27-0111-01 · 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
Public boat-access points from the USGS National Boat Ramps inventory
Ice data from Minnesota DNR Climate
Most recent sample: 2025-09-24
Monitoring stations: 4
Where to stay near Eagle Lake
Compare lakeside cabins, hotels, and vacation rentals near Eagle Lake in Hennepin County, Minnesota — live availability and prices for your trip.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.