Where is Lake Twentynine?

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

How deep is Lake Twentynine?

Lake Twentynine has a maximum depth of 25 feet. The lake covers 48 acres.

Lake Twentynine

Carlton County, Minnesota48 acresView map Directions

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

Max depth

25 ft

Bathymetric survey

Area

48 acres

Surface area

Shoreline

1.2 mi

Measured length

Impaired · Nutrients (phosphorus, nitrogen)
25 ft max depth

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Lake Twentynine in Carlton County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 25 ft. Surface area: 48 acres.

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Lake Twentynine is a 48-acre lake in Carlton County, Minnesota with a maximum depth of 25 feet.

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

Swimming conditions

No reading

Recreation use not supported

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

Whether Lake Twentynine 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 Lake Twentynine

These are the measurements Minnesota PCA publishes for Lake Twentynine, 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.

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

Lake Details

Max depth

25 ft

Surface area

48 acres

Shoreline

1.2 mi

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

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Stays near Lake Twentynine

Compare lakeside cabins, hotels, and vacation rentals near Lake Twentynine in Carlton 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.

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Fishing Lake Twentynine

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

EPA Impairment Status

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

Causes of impairment

Nutrients (phosphorus, nitrogen)

Designated uses not supporting: Recreation.

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

Source: EPA ATTAINS assessment unit MN09-0022-00 · Official waterbody report

Nearby Lakes in Carlton County

Crystal Lake1.4 miView →Bear Lake2.4 miView →Little Hanging Horn Lake11.5 ft clear3.2 miView →Munson Lake2.9 miView →Hanging Horn Lake6.5 ft clear4 miView →Hizer Lake4 miView →

Frequently asked questions about Lake Twentynine

Where is Lake Twentynine?: Lake Twentynine is a lake in Carlton County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Lake Twentynine?: Lake Twentynine in Carlton County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 25 ft. Surface area: 48 acres.
Is Lake Twentynine safe to swim in?: Nutrient and algae readings are not a swimming clearance. Lake Twentynine is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Lake Twentynine?: Lake Twentynine has a maximum depth of 25 feet. The lake covers 48 acres.