Thief Lake
Marshall County, Minnesota6,498 acresView mapDirections
No nutrient or algae sampling on record from Minnesota PCA for this lake.
- 5 ft max depth
Thief Lake in Marshall County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 4.5 ft. Surface area: 6498 acres.
Thief Lake is a 6,498-acre lake in Marshall County, Minnesota with a maximum depth of 5 feet.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder. Methodology: how these readings are compared.
What Thief Lake is good for
From access and monitoring records, not editorial picks.
- Big water6,498 acres
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Thief 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 Thief Lake
These are the measurements Minnesota PCA publishes for Thief 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 Thief Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
4.5 ft
Surface area
6,498 acres
Shoreline
25.2 mi
The depth above comes from a bathymetric survey of this lake, not from a regional estimate.
Stays via Stay22
Stays near Thief Lake
Compare lakeside cabins, hotels, and vacation rentals near Thief Lake in Marshall 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 Thief 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 Thief Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Thief Lake
Nearby Lakes in Marshall County
Frequently asked questions about Thief Lake
Where is Thief Lake?
- Thief Lake is a lake in Marshall County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Thief Lake?
- Thief Lake in Marshall County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 4.5 ft. Surface area: 6498 acres.
Is Thief Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Thief Lake?
- Thief Lake has a maximum depth of 4.5 feet. The lake covers 6498 acres.
Explore Thief Lake across LakeQuality
Fish species and the cleanest lakes across Minnesota
Species activity outlook by water temperature and season
Where to stay at Minnesota's top lakes, each with its readings
Lakes in the Red River of the North Watershed, ranked by water quality
Minnesota's cleanest lakes, ranked on agency measurements
More lakes in Minnesota
State Parks Near Thief Lake
Other Lakes in Minnesota
Where this data comes from
Measurements for Thief 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