Sister Lake
Lake County, Minnesota124 acresView mapDirections
No nutrient or algae sampling on record from Minnesota PCA for this lake.
- 10 ft max depth
Sister Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 9.8 ft. Surface area: 124 acres.
Sister Lake is a 124-acre lake in Lake County, Minnesota with a maximum depth of 10 feet.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder. Methodology: how these readings are compared.
What Sister Lake is good for
From access and monitoring records, not editorial picks.
- Camping1 public campground nearby
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Sister 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 Sister Lake
These are the measurements Minnesota PCA publishes for Sister 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 Sister Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
9.8 ft
Surface area
124 acres
Shoreline
2.9 mi
Recreation & Access
Public campgrounds near Sister Lake
- Harriet Lake Rustic Campground1.0 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Stays via Stay22
Stays near Sister Lake
Compare lakeside cabins, hotels, and vacation rentals near Sister 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 Sister 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 Sister Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Sister Lake
Nearby Lakes in Lake County
Frequently asked questions about Sister Lake
Where is Sister Lake?
- Sister Lake is a lake in Lake County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Sister Lake?
- Sister Lake in Lake County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 9.8 ft. Surface area: 124 acres.
Is Sister Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Sister Lake?
- Sister Lake has a maximum depth of 9.8 feet. The lake covers 124 acres.
Are there campgrounds on Sister Lake?
- Sister Lake has 1 public campground from USGS The National Map within 5 km, including Harriet Lake Rustic Campground. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
Explore Sister Lake across LakeQuality
Fish species and the cleanest lakes across Minnesota
Fish species and best lakes in Lake County
Species activity outlook by water temperature and season
Where to stay at Minnesota's top lakes, each with its readings
Lakes in the Lake Superior Basin (MN+WI), ranked by water quality
Minnesota's cleanest lakes, ranked on agency measurements
More lakes in Minnesota
State Parks Near Sister Lake
Other Lakes in Minnesota
Where this data comes from
Measurements for Sister 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
Public campgrounds from USGS The National Map Structures, within about 3 miles