Lake Mary
Pope County, Minnesota103 acresView mapDirections
No nutrient or algae sampling on record from Minnesota PCA for this lake.
- Impaired · Nutrients (phosphorus, nitrogen)
- 16 ft max depth
Lake Mary in Pope County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 16.4 ft. Surface area: 103 acres.
Lake Mary is a 103-acre lake in Pope County, Minnesota with a maximum depth of 16 feet.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder. Methodology: how these readings are compared.
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Lake Mary is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Lake Mary 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 Lake Mary
These are the measurements Minnesota PCA publishes for Lake Mary, 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 Lake Mary
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
16.4 ft
Surface area
103 acres
Shoreline
2.2 mi
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Fishing Lake Mary
EPA Impairment Status
Lake Mary is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN61-0099-00 · Official waterbody report
Nearby Lakes in Pope County
Frequently asked questions about Lake Mary
Where is Lake Mary?
- Lake Mary is a lake in Pope County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Lake Mary?
- Lake Mary in Pope County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 16.4 ft. Surface area: 103 acres.
Is Lake Mary safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Mary is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Lake Mary?
- Lake Mary has a maximum depth of 16.4 feet. The lake covers 103 acres.
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Where this data comes from
Measurements for Lake Mary come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Lake details from Minnesota DNR LakeFinder