Slim Lake
St. Louis County, Minnesota138 acresView mapDirections
No nutrient or algae sampling on record from Minnesota PCA for this lake.
- 42 ft max depth
Slim Lake in St. Louis County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 42 ft. Surface area: 138 acres.
Slim Lake is a 138-acre lake in St. Louis County, Minnesota with a maximum depth of 42 feet.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder. Methodology: how these readings are compared.
What Slim Lake is good for
From access and monitoring records, not editorial picks.
- Deep water42 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Slim Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Slim Lake
These are the measurements Minnesota PCA publishes for Slim Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Slim Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
42 ft
Surface area
138 acres
Shoreline
4.9 mi
Stays via Stay22
Stays near Slim Lake
Compare lakeside cabins, hotels, and vacation rentals near Slim Lake in St. Louis 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 Slim Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Minnesota’s top lakes →
Follow Slim Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Slim Lake
Nearby Lakes in St. Louis County
Frequently asked questions about Slim Lake
Where is Slim Lake?
- Slim Lake is a lake in St. Louis County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Slim Lake?
- Slim Lake in St. Louis County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 42 ft. Surface area: 138 acres.
Is Slim Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Slim Lake?
- Slim Lake has a maximum depth of 42 feet. The lake covers 138 acres.
Explore Slim Lake across LakeQuality
Fish species and the cleanest lakes across Minnesota
Fish species and best lakes in St. Louis County
Species activity outlook by water temperature and season
Top lakes and where to stay in the Lake Vermilion Area area
Where to stay at Minnesota's top lakes, each with its readings
Lakes in the Lake Superior Basin (MN+WI), ranked by water quality
Lakes in the Rainy Lake Watershed, ranked by water quality
Minnesota's cleanest lakes, ranked on agency measurements
More lakes in Minnesota
Other Lakes in Minnesota
Where this data comes from
Measurements for Slim Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Lake details from Minnesota DNR LakeFinder