Hatfield Lake
St. Croix County, Wisconsin86 acresView mapDirections
No nutrient or algae sampling on record from Wisconsin DNR for this lake.
Hatfield Lake in St. Croix County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Surface area: 86 acres.
Hatfield Lake is a 86-acre lake in St. Croix County, Wisconsin.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water. 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 Hatfield Lake is safe to swim in today is a call for the Wisconsin Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Hatfield Lake
These are the measurements Wisconsin DNR publishes for Hatfield 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 Hatfield Lake
Answers come straight from the public measurements and survey records on this page.
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Hatfield Lake covering fish populations, stocking, water quality, and management. 1 report on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- 2025Hatfield Lake spring shocking survey, 2025Spring Shocking Survey · WI DNR · 2025 (PDF)
Lake Details
Surface area
86 acres
Shoreline
3 mi
No bathymetric survey has been published for Hatfield Lake, so its depth is not documented here.
Stays via Stay22
Stays near Hatfield Lake
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Fishing Hatfield Lake
Nearby Lakes in St. Croix County
Frequently asked questions about Hatfield Lake
Where is Hatfield Lake?
- Hatfield Lake is a lake in St. Croix County, Wisconsin. Its water-quality measurements are published by Wisconsin DNR and shown on this page as reported.
What is the water quality of Hatfield Lake?
- Hatfield Lake in St. Croix County, Wisconsin has water-quality measurements published by Wisconsin DNR, shown here as reported. Surface area: 86 acres.
Is Hatfield Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Hatfield Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.