Flat Lake
Jackson County, Iowa114 acresView mapDirections
No nutrient or algae sampling on record from Iowa DNR for this lake.
Flat Lake in Jackson County, Iowa has water-quality measurements published by Iowa DNR, shown here as reported. Surface area: 114 acres.
Flat Lake is a 114-acre lake in Jackson County, Iowa.
Source: EPA Water Quality Portal sampling records, Iowa DNR. 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 Flat Lake is safe to swim in today is a call for the Iowa Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Flat Lake
These are the measurements Iowa DNR publishes for Flat 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 Flat Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
114 acres
Shoreline
5.3 mi
No bathymetric survey has been published for Flat Lake, so its depth is not documented here.
Stays via Stay22
Stays near Flat Lake
Compare lakeside cabins, hotels, and vacation rentals near Flat Lake in Jackson County, Iowa — 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.
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Frequently asked questions about Flat Lake
Where is Flat Lake?
- Flat Lake is a lake in Jackson County, Iowa. Its water-quality measurements are published by Iowa DNR and shown on this page as reported.
What is the water quality of Flat Lake?
- Flat Lake in Jackson County, Iowa has water-quality measurements published by Iowa DNR, shown here as reported. Surface area: 114 acres.
Is Flat 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 Flat Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.