Coal Lake is a lake in Todd County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.

How deep is Coal Lake?

Coal Lake has a maximum depth of 25 feet. The lake covers 165 acres.

Are there boat ramps on Coal Lake?

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

Can I fish at Coal Lake?

Coal 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 Minnesota's fish and wildlife agency, so check its current regulations before you go.

Coal Lake

Todd County, Minnesota165 acresView map Directions

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

Max depth

25 ft

Bathymetric survey

Area

165 acres

Surface area

Shoreline

2.6 mi

Measured length

Impaired · Mercury
25 ft max depth
Public access

See the measurements Directions Where to stay

Coal Lake in Todd County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 25 ft. Surface area: 165 acres.

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Coal Lake is a 165-acre lake in Todd County, Minnesota with a maximum depth of 25 feet. Limited fish-species data available. Public access is available with 1 public boat landing.

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

What Coal 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. Coal Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.

Whether Coal Lake 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.

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Water quality measurements for Coal Lake

These are the measurements Minnesota PCA publishes for Coal 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 Coal Lake

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

Lake Details

Max depth

25 ft

Surface area

165 acres

Shoreline

2.6 mi

Public access

Yes

Listed by Minnesota PCA

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

Recreation & Access

Boat Landings

Yes

Public Access

Coal LakePublic

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

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Stays near Coal Lake

Compare lakeside cabins, hotels, and vacation rentals near Coal Lake in Todd County, Minnesota — 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 Coal Lake

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Fishing Coal Lake

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

EPA Impairment Status

Coal 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 MN77-0046-00 · Official waterbody report

Nearby Lakes in Todd County

Long Lake1 miView →Round Lake1.6 miView →Chain of Lakes1.9 miView →Wintergreen Lake1.8 miView →Thunder Lake2.6 miView →Mud Lake2.7 miView →

Frequently asked questions about Coal Lake

Where is Coal Lake?: Coal Lake is a lake in Todd County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Coal Lake?: Coal Lake in Todd County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 25 ft. Surface area: 165 acres.
Is Coal Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Coal Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Coal Lake?: Coal Lake has a maximum depth of 25 feet. The lake covers 165 acres.
Are there boat ramps on Coal Lake?: Coal Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Coal Lake. Public access is listed as yes.
Can I fish at Coal Lake?: Coal 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 Minnesota's fish and wildlife agency, so check its current regulations before you go.