Eagle Lake
Eagle Lake in Hubbard County, Minnesota has a water quality grade of A (Excellent). Water clarity: 11.2 ft visibility. Phosphorus: 14.5 µg/L. Chlorophyll-a (algae): 4.7 µg/L. Maximum depth: 77 ft. Surface area: 423.53 acres.
- Clarity
- 11.2 ft
- Max depth
- 77 ft
- Area
- 424 acres
- Type
- Mesotrophic
- Trend
- ↑ Improving
- Public access
- Yes
- Ice-out
- Apr 24
- Open water
- 220 days
Next lake in Hubbard County
Eagle Lake is a 424-acre mesotrophic lake in Hubbard County, Minnesota with a maximum depth of 77 feet (21-foot average). Water quality is graded A based on 2 sampling years through 2025. Overall water quality is improving over recent sampling years. The lake supports 16 documented fish species including black crappie, bluegill, and brown bullhead. Public access is available with 2 public boat landings. Compared to the 67 other monitored lakes in Hubbard County, Eagle Lake ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-22. Grade methodology: LakeGrade methodology.
Watch Eagle Lake water quality
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Swimming Safety
Grade onlyLow algae
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A (Excellent)
Good clarity, visible to about 11.2 ft. Phosphorus level: 14.5 µg/L. Chlorophyll-a: 4.7 µg/L. Trophic State Index: 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.2 ft | Not graded |
| Phosphorus | 14.5 µg/L | Good |
| Chlorophyll-a (Algae) | 4.7 µg/L | Good |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Eagle Lake
Compare lakeside cabins, hotels, and vacation rentals near Eagle Lake in Hubbard County, Minnesota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Blue-Green Algae (Cyanobacteria)
There’s no recent EPA CyAN cyanobacteria estimate for Eagle Lake — clouds, ice, or an off-season gap in coverage. The most recent reading was high (199,526 cells/mL) on October 25, 2025.
Blue-green algae can appear and clear within days, so check your state’s current advisory before swimming. EPA CyAN ↗
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 77 ft |
| Average Depth | 21 ft |
| Surface Area | 424 acres |
| Shoreline Length | 5.7 mi |
| Littoral Zone | 39% |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Potato Lake (Northwest)Public
- Eagle LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Eagle Lake
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
DNR Fisheries Survey Summary
13 surveys on file from MN DNR Fisheries. Most recent: 2022-07-18 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| BNS | 39.67 | — |
| Black Bullhead | 12.21 | 0.55 lb |
| Yellow Perch | 11.46 | 0.13 lb |
| CSH | 10.00 | — |
| Spottail Shiner | 8.00 | — |
| Bluegill | 7.45 | 0.27 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.
Black Bullhead
Yellow Perch
Bluegill
From the 2022-07-18 survey
Eagle Lake is located seven miles north of Park Rapids in west-central Hubbard County. Eagle has a surface area of 424 acres and a maximum depth of 77 feet. A DNR owned public access is located on the west shore of the lake off US-71. Access is also available by small craft from Island Lake which lies to the north of…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Eagle Lake. 4 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — EagleFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Eagle (1265)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — EagleFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — EaglePublic Water Access Sites · MN DNR LakeFinder
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.013 m/yr | 6 |
| Phosphorus | ↑ Improving | -0.94 µg/L/yr | 6 |
| Chlorophyll-a | → Stable | -0.06 µg/L/yr | 6 |
Ice Season
Historical ice data from Minnesota DNR (16 observations).
Estimated open water season: 220 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2016-04-02 (2016) | 2013-05-11 (2013) |
| Ice-In | 2003-11-03 (2003) | 2004-12-16 (2004) |
Most recent ice-out: 2016-04-02
EPA Impairment Status
Eagle 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 MN29-0256-00 · Official waterbody report
County Ranking
Ranked #6 of 68 lakes in Hubbard County
Nearby Lakes in Hubbard County
Frequently asked questions about Eagle Lake
What is the water quality grade for Eagle Lake?
- Eagle Lake in Hubbard County, Minnesota has a water quality grade of A (Excellent). Water clarity: 11.2 ft visibility. Phosphorus: 14.5 µg/L. Chlorophyll-a (algae): 4.7 µg/L. Maximum depth: 77 ft. Surface area: 423.53 acres.
Is Eagle Lake safe to swim in?
- Excellent for swimming, crystal clear water with minimal algae. Eagle Lake has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 4.7 µg/L. Always check local health department advisories before swimming.
How deep is Eagle Lake?
- Eagle Lake has a maximum depth of 77 feet and an average depth of 21 feet. The lake covers 423.53 acres.
What fish are in Eagle Lake?
- Fish species found in Eagle Lake include black crappie, bluegill, brown bullhead, greater redhorse, hybrid sunfish, largemouth bass, northern pike, northern sunfish, pumpkinseed, rock bass, shorthead redhorse, tullibee (cisco), walleye, white sucker, yellow bullhead, yellow perch. Eagle Lake is located in Hubbard County, Minnesota.
When does Eagle Lake thaw?
- Eagle Lake typically has ice-out around Apr 24. Ice typically forms around Nov 30. The open water season is approximately 220 days.
Does Eagle Lake have blue-green algae?
- There is no recent EPA CyAN cyanobacteria estimate for Eagle Lake (clouds, ice, or an off-season gap). The most recent reading was high (199,526 cells/mL). Blue-green algae can appear and clear within days, so check Minnesota's current advisory before swimming.
Are there boat ramps on Eagle Lake?
- Eagle Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Potato Lake (Northwest), Eagle Lake. Public access is listed as yes.
Explore Eagle Lake across LakeGrade
Depth, room, public access, and the state wake-sport rules
Fish species and top-graded lakes across Minnesota
Fish species and best lakes in Hubbard County
Species activity outlook by water temperature and season
Top lakes and where to stay in the Park Rapids Area area
Where to stay at Minnesota's top lakes, each with its grade
Lakes in the Mississippi Headwaters, ranked by water quality
Moderate nutrients, good water quality
Minnesota's cleanest and most-polluted lakes, ranked
More Minnesota Lake Rankings
State Parks Near Eagle Lake
Other Grade A Lakes in Minnesota
Mesotrophic Lakes in Minnesota
Where this data comes from
95 measurements from 2 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA95 samples · 2020–2025
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (2)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder
Named boat-access points from the USGS National Boat Ramps inventory
Ice data from Minnesota DNR Climate