Pokegama Lake
Itasca County, MinnesotaLimited DataOligotrophic
On the LakeGrade rubric, Pokegama Lake pulls an A: clarity at 17.5 ft and phosphorus readings still being added put it in the top bracket for Minnesota.
A TSI value of 36 puts Pokegama Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. At 112 ft of maximum depth, Pokegama Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. With 6,721 acres of surface and 57.2 miles of shoreline, Pokegama Lake is a large water by Minnesota standards — recreational pressure is spread across a long shoreline. Among the 141 graded lakes in Itasca County, Pokegama Lake ranks 31 — in the top quartile locally.
Pokegama Lake is on the Minnesota infested-waters list for zebra mussels — boaters should follow clean-drain-dry protocols when moving gear to or from the lake. Muskie are on the species list at Pokegama Lake, among the lake's 19 documented fish. A documented public access point at Pokegama Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The lake has a long ice-out record — 69 observations on file, with a median ice-out around Apr 27. 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 2021-07-22. Grade methodology: LakeGrade methodology.
Track Pokegama Lake
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 17.5 ft down. Trophic State Index: 36.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 17.5 ft | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 36 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 112 ft |
| Surface Area | 6.7K acres |
| Shoreline Length | 57.2 mi |
| Littoral Zone | 29% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Pokegama Lake (14-day solunar calendar)
→ Is it safe to eat fish from Pokegama Lake? (mercury & PFAS guide)
→ Pokegama 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: ↑ Improving
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.057 m/yr | 4 |
| Phosphorus | ↑ Improving | -0.35 µg/L/yr | 4 |
Ice Season
Historical ice data from Minnesota DNR (70 observations).
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2012-03-27 (2012) | 2013-05-17 (2013) |
| Ice-In | 2017-12-07 (2017) | 2017-12-07 (2017) |
Most recent ice-out: 2023-05-06
Location
County Ranking
Ranked #31 of 141 lakes in Itasca County
Nearby Lakes in Itasca County
More Minnesota Lake Rankings
State Parks Near Pokegama Lake
Other Grade A Lakes in Minnesota
Oligotrophic Lakes in Minnesota
Compare Pokegama Lake With Nearby Lakes
DNR Fisheries Survey Summary
22 surveys on file from MN DNR Fisheries. Most recent: 2024-06-17 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Yellow Perch | 20.68 | 0.12 lb |
| Bluegill | 8.54 | 0.21 lb |
| CNM | 6.66 | — |
| Largemouth Bass | 6.64 | 0.83 lb |
| RBS | 4.91 | 0.04 lb |
| Smallmouth Bass | 4.68 | 1.39 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.
Yellow Perch
Bluegill
Largemouth Bass
RBS
From the 2024-06-17 survey
Pokegama Lake is in ecological lake class 22 and is located just southwest of Grand Rapids, MN, in the Mississippi River Watershed. The lake is 6,721 acres and has a maximum depth of 112 feet. Area Fisheries staff conducted a targeted survey setting 15 trap nets on 16 June, 2024 and began nearshore fish species…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Pokegama Lake. 5 reports on file.
- —Fisheries Lake Survey — PokegamaFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Pokegama (0554)Aquatic Plant Report · MN DNR LakeFinder
- —Aquatic Plant Report — Pokegama (0556)Aquatic Plant Report · MN DNR LakeFinder
- —Fish Stocking History — PokegamaFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — PokegamaPublic Water Access Sites · MN DNR LakeFinder
Reservoir Info (USACE NID)
Pokegama Lake is a man-made reservoir impounded by the Pokegama Dam - Dikes 4 and 5 (completed 1884), built primarily for recreation on the MISSISSIPPI; concrete-type dam, 17 ft tall and 385 ft long.
- Surface area
- 13,000 ac
- Normal storage
- 82,000 ac-ft
- Max storage
- 120,000 ac-ft
- Drainage area
- 660 sq mi
- Hazard class
- Significant
- Owner
- USACE - St. Paul District
All listed purposes: Recreation;Navigation;Fish and Wildlife Pond;Water Supply;Flood Risk Reduction.
Source: USACE National Inventory of Dams, NID ID MN00584 · Operator website
EPA Impairment Status
Pokegama 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 MN31-0532-01 · Official waterbody report · Matched by proximity (1.53 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: 2021-07-22
Monitoring stations: 1