Swan Lake is a lake in Emmet County, Iowa. Its water-quality measurements are published by Iowa DNR and shown on this page as reported.

Swan Lake

Emmet County, Iowa766 acresView map Directions

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

Area

766 acres

Surface area

Shoreline

8.2 mi

Measured length

Impaired · Algal growth

See the measurements Directions Where to stay

Swan Lake in Emmet County, Iowa has water-quality measurements published by Iowa DNR, shown here as reported. Surface area: 766 acres.

Loading map…

Swan Lake is a 766-acre lake in Emmet County, Iowa.

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

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Swan Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, turbidity. Check local advisories before you swim.

Whether Swan Lake is safe to swim in today is a call for the Iowa Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

Compare swimming lakes near Mankato →

Get alerts for Swan Lake →

Water quality measurements for Swan Lake

These are the measurements Iowa DNR publishes for Swan 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 Swan Lake

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

Lake Details

Surface area

766 acres

Shoreline

8.2 mi

No bathymetric survey has been published for Swan Lake, so its depth is not documented here.

Stays via Stay22

Stays near Swan Lake

Compare lakeside cabins, hotels, and vacation rentals near Swan Lake in Emmet County, Iowa — 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 Swan Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Iowa’s top lakes →

Follow Swan Lake’s readings

Email me when new measurements post for this lake. Updates stay free.

Or email

Fishing Swan Lake

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

EPA Impairment Status

Swan Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

Algal growthTurbidity

Designated uses not supporting: Aquatic life.

Source: EPA ATTAINS assessment unit IA 04-UDM-1754 · Official waterbody report

Nearby Lakes in Emmet County

North Slough2.2 miView →West Slough2.6 miView →Ingham Lake1.4 ft clear · Hypereutrophic3.3 miView →Cunningham Slough4 miView →High Lake4.2 miView →Bur Oak Lake6.3 miView →

Frequently asked questions about Swan Lake

Where is Swan Lake?: Swan Lake is a lake in Emmet County, Iowa. Its water-quality measurements are published by Iowa DNR and shown on this page as reported.
What is the water quality of Swan Lake?: Swan Lake in Emmet County, Iowa has water-quality measurements published by Iowa DNR, shown here as reported. Surface area: 766 acres.
Is Swan Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Swan Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, turbidity. Check local advisories before you swim.