Where is Chisago Lake?

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

How deep is Chisago Lake?

Chisago Lake has a maximum depth of 27 feet. The lake covers 1045 acres.

Chisago Lake

Chisago County, Minnesota1,045 acresView map Directions

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

Max depth

27 ft

Bathymetric survey

Area

1,045 acres

Surface area

Shoreline

13.8 mi

Measured length

Impaired · Mercury
27 ft max depth

See the measurements Directions Where to stay

Chisago Lake in Chisago County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 27 ft. Surface area: 1045 acres.

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Chisago Lake is a 1,045-acre lake in Chisago County, Minnesota with a maximum depth of 27 feet.

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

What Chisago Lake is good for

From access and monitoring records, not editorial picks.

Big water1,045 acres

Swimming conditions

No reading

Not rated

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

Whether Chisago 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 Chisago Lake

These are the measurements Minnesota PCA publishes for Chisago 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 Chisago Lake

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

Lake Details

Max depth

27 ft

Surface area

1,045 acres

Shoreline

13.8 mi

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

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Stays near Chisago Lake

Compare lakeside cabins, hotels, and vacation rentals near Chisago Lake in Chisago 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 Chisago Lake

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Fishing Chisago Lake

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

EPA Impairment Status

Chisago 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 MN13-0012-02 · Official waterbody report

Nearby Lakes in Chisago County

Chisago Lake4 ft clear · Eutrophic0.3 miView →Kroon Lake5.9 ft clear · Mesotrophic1.1 miView →Wallmark Lake1.6 ft clear · Eutrophic1.7 miView →Green Lake6 ft clear · Eutrophic1.5 miView →Little Green Lake1.5 miView →South Lindstrom Lake5.6 ft clear · Mesotrophic2.1 miView →

Frequently asked questions about Chisago Lake

Where is Chisago Lake?: Chisago Lake is a lake in Chisago County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Chisago Lake?: Chisago Lake in Chisago County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 27 ft. Surface area: 1045 acres.
Is Chisago Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Chisago Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Chisago Lake?: Chisago Lake has a maximum depth of 27 feet. The lake covers 1045 acres.