Floyd Lake is a lake in Iosco County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.

How deep is Floyd Lake?

Floyd Lake has a maximum depth of 15 feet. The lake covers 41 acres.

Floyd Lake

Iosco County, Michigan41 acresView map Directions

No nutrient or algae sampling on record from EGLE for this lake.

Max depth

15 ft

Bathymetric survey

Area

41 acres

Surface area

Shoreline

1.4 mi

Measured length

Impaired · Mercury
15 ft max depth

See the measurements Directions Where to stay

Floyd Lake in Iosco County, Michigan has water-quality measurements published by EGLE, shown here as reported. Maximum depth: 15 ft. Surface area: 41 acres.

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Floyd Lake is a 41-acre lake in Iosco County, Michigan with a maximum depth of 15 feet.

Source: EPA Water Quality Portal sampling records, EGLE. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Floyd Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.

Whether Floyd Lake is safe to swim in today is a call for the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Floyd Lake

These are the measurements EGLE publishes for Floyd 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 Floyd Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

15 ft

Surface area

41 acres

Shoreline

1.4 mi

The depth above comes from a bathymetric survey of this lake, not from a regional estimate.

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Stays near Floyd Lake

Compare lakeside cabins, hotels, and vacation rentals near Floyd Lake in Iosco County, Michigan — 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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Fishing Floyd Lake

→ Floyd Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Floyd Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

Designated uses not supporting: Fish consumption.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MI040801010204-02 · Official waterbody report

Nearby Lakes in Iosco County

Little Island Lake7 ft clear0.4 miView →Round Lake0.7 miView →Sand Lake0.7 miView →Bass Lake0.9 miView →Indian Lake1.5 miView →Island Lake1.5 miView →

Frequently asked questions about Floyd Lake

Where is Floyd Lake?: Floyd Lake is a lake in Iosco County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Floyd Lake?: Floyd Lake in Iosco County, Michigan has water-quality measurements published by EGLE, shown here as reported. Maximum depth: 15 ft. Surface area: 41 acres.
Is Floyd Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Floyd Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Floyd Lake?: Floyd Lake has a maximum depth of 15 feet. The lake covers 41 acres.