Mitawan Lake
Mitawan Lake in Lake County, Minnesota has a water quality grade of A (Excellent). Water clarity: 11.3 ft visibility. Phosphorus: 7.5 µg/L. Chlorophyll-a (algae): 2.4 µg/L. Maximum depth: 24 ft. Surface area: 191.43 acres.
- Clarity
- 11.3 ft
- Typical in August
- 68°F
- Max depth
- 24 ft
- Area
- 191 acres
- Type
- Oligotrophic
- Trend
- ↑ Improving
- Public access
- No
- Ice-out
- May 2
Next lake in Lake County
Mitawan Lake is a 191-acre cold, clear oligotrophic lake in Lake County, Minnesota with a maximum depth of 24 feet. Water quality is graded A based on 2 sampling years through 2025. Overall water quality is improving over recent sampling years. The lake supports 9 documented fish species including bluegill, burbot, and largemouth bass. No public access — the lake is private or restricted. Compared to the 34 other monitored lakes in Lake County, Mitawan Lake ranks #16 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-12. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLimited data
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 11.3 ft. Phosphorus level: 7.5 µg/L. Chlorophyll-a: 2.4 µg/L. Trophic State Index: 38.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.3 ft | Not graded |
| Phosphorus | 7.5 µg/L | Good |
| Chlorophyll-a (Algae) | 2.4 µg/L | Good |
| Trophic State Index (TSI) | 38 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Mitawan Lake
Compare lakeside cabins, hotels, and vacation rentals near Mitawan Lake in Lake 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.
Top-rated places to stay near Mitawan Lake
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Water Temperature
Mitawan Lake typically sits around 68°F at the surface in August. Summer average is about 65°F. Usually warmest in Aug (about 68°F) and coldest in May (about 56°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 35 field readings (2025–2025) via the EPA Water Quality Portal. See the full Mitawan Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 24 ft |
| Surface Area | 191 acres |
| Shoreline Length | 4.6 mi |
| Littoral Zone | 55% |
| Public Access | No |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Mitawan Lake
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.14 m/yr | 6 |
Ice Season
Historical ice data from Minnesota DNR (43 observations).
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 1958-04-18 (1958) | 1950-05-20 (1950) |
Most recent ice-out: 2020-05-02
EPA Impairment Status
Mitawan Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit MN38-0557-00 · Official waterbody report · Matched by proximity (1.68 km)
County Ranking
Ranked #16 of 35 lakes in Lake County
Nearby Lakes in Lake County
Frequently asked questions about Mitawan Lake
What is the water quality grade for Mitawan Lake?
- Mitawan Lake in Lake County, Minnesota has a water quality grade of A (Excellent). Water clarity: 11.3 ft visibility. Phosphorus: 7.5 µg/L. Chlorophyll-a (algae): 2.4 µg/L. Maximum depth: 24 ft. Surface area: 191.43 acres.
Is Mitawan Lake safe to swim in?
- Excellent for swimming, crystal clear water with minimal algae. Mitawan Lake has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 2.4 µg/L. Always check local health department advisories before swimming.
What is the water temperature of Mitawan Lake?
- Mitawan Lake typically sits around 68°F at the surface in August, from 35 EPA Water Quality Portal field readings (2025–2025). That is a typical value for the month, not a live reading.
How deep is Mitawan Lake?
- Mitawan Lake has a maximum depth of 24 feet. The lake covers 191.43 acres.
What fish are in Mitawan Lake?
- Fish species found in Mitawan Lake include bluegill, burbot, largemouth bass, northern pike, rock bass, smallmouth bass, walleye, white sucker, yellow perch. Mitawan Lake is located in Lake County, Minnesota.
When does Mitawan Lake thaw?
- Mitawan Lake typically has ice-out around May 2.
Explore Mitawan Lake across LakeGrade
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Where this data comes from
18 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA18 samples · 2025
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (1)
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
Ice data from Minnesota DNR Climate