Eighteen Lake
Polk County, Minnesota87 acresView mapDirections
No nutrient or algae sampling on record from Minnesota PCA for this lake.
Eighteen Lake in Polk County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Surface area: 87 acres.
Eighteen Lake is a 87-acre lake in Polk County, Minnesota.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Eighteen 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 Eighteen Lake
These are the measurements Minnesota PCA publishes for Eighteen 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 Eighteen Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
87 acres
Shoreline
1.7 mi
No bathymetric survey has been published for Eighteen Lake, so its depth is not documented here.
Stays via Stay22
Stays near Eighteen Lake
Compare lakeside cabins, hotels, and vacation rentals near Eighteen Lake in Polk 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 Eighteen 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 Eighteen Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Eighteen Lake
Nearby Lakes in Polk County
Frequently asked questions about Eighteen Lake
Where is Eighteen Lake?
- Eighteen Lake is a lake in Polk County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Eighteen Lake?
- Eighteen Lake in Polk County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Surface area: 87 acres.
Is Eighteen Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Eighteen Lake across LakeQuality
Fish species and the cleanest lakes across Minnesota
Fish species and best lakes in Polk County
Species activity outlook by water temperature and season
Where to stay at Minnesota's top lakes, each with its readings
Lakes in the St. Croix Watershed, ranked by water quality
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
Other Lakes in Minnesota
Where this data comes from
Measurements for Eighteen 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