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

How deep is Long Lake?

Long Lake has a maximum depth of 10 feet. The lake covers 169 acres.

Are there boat ramps on Long Lake?

Long Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Long Lake. Public access is listed as yes.

Can I fish at Long Lake?

Long Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Michigan's fish and wildlife agency, so check its current regulations before you go.

Long Lake

Oakland County, Michigan169 acresView map Directions

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

Max depth

10 ft

Bathymetric survey

Area

169 acres

Surface area

Shoreline

3 mi

Measured length

Impaired · Mercury
10 ft max depth
Public access

See the measurements Directions Where to stay

Long Lake in Oakland County, Michigan has water-quality measurements published by EGLE, shown here as reported. Maximum depth: 10 ft. Surface area: 169 acres.

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Long Lake is a 169-acre lake in Oakland County, Michigan with a maximum depth of 10 feet. Limited fish-species data available. Public access is available with 1 public boat landing.

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

What Long Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp

Swimming conditions

No reading

Not rated

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

Whether Long 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 Long Lake

These are the measurements EGLE publishes for Long 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 Long Lake

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

Lake Details

Max depth

10 ft

Surface area

169 acres

Shoreline

3 mi

Public access

Yes

Listed by EGLE

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

Recreation & Access

Boat Landings

Yes

Public Access

Long LakePublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Stays via Stay22

Stays near Long Lake

Compare lakeside cabins, hotels, and vacation rentals near Long Lake in Oakland 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.

Top-rated places to stay near Long Lake

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Follow Long Lake’s readings

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Fishing Long Lake

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

EPA Impairment Status

Long 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 MI040900050102-02 · Official waterbody report

Nearby Lakes in Oakland County

Colley Lake0.5 miView →Round Lake10.5 ft clear1 miView →Mandon Lake1.2 miView →Clark Lake1 miView →Union Lake1.2 miView →Lower Straits Lake—View →

Frequently asked questions about Long Lake

Where is Long Lake?: Long Lake is a lake in Oakland County, Michigan. Its water-quality measurements are published by EGLE and shown on this page as reported.
What is the water quality of Long Lake?: Long Lake in Oakland County, Michigan has water-quality measurements published by EGLE, shown here as reported. Maximum depth: 10 ft. Surface area: 169 acres.
Is Long Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Long Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Long Lake?: Long Lake has a maximum depth of 10 feet. The lake covers 169 acres.
Are there boat ramps on Long Lake?: Long Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Long Lake. Public access is listed as yes.
Can I fish at Long Lake?: Long Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Michigan's fish and wildlife agency, so check its current regulations before you go.