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

How deep is Fish Lake?

Fish Lake has a maximum depth of 14.1 feet. The lake covers 929 acres.

Are there boat ramps on Fish Lake?

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

Can I fish at Fish Lake?

Fish 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.

Fish Lake

Otter Tail County, Minnesota929 acresView map Directions

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

Max depth

14.1 ft

Bathymetric survey

Area

929 acres

Surface area

Shoreline

8.1 mi

Measured length

Impaired · Impaired biota (cause unknown)
14 ft max depth
Public access

See the measurements Directions Where to stay

Fish Lake in Otter Tail County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 14.1 ft. Surface area: 929 acres.

Loading map…

Fish Lake is a 929-acre lake in Otter Tail County, Minnesota with a maximum depth of 14 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 Fish 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. Fish Lake is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), mercury. Check local advisories before you swim.

Whether Fish 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.

Compare swimming lakes near Detroit Lakes →

Get alerts for Fish Lake →

Water quality measurements for Fish Lake

These are the measurements Minnesota PCA publishes for Fish 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 Fish Lake

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

Lake Details

Max depth

14.1 ft

Surface area

929 acres

Shoreline

8.1 mi

Public access

Yes

Listed by Minnesota PCA

Recreation & Access

Boat Landings

Yes

Public Access

Fish 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 Fish Lake

Compare lakeside cabins, hotels, and vacation rentals near Fish Lake in Otter Tail 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 Fish 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 Minnesota’s top lakes →

Follow Fish Lake’s readings

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

Or email

Fishing Fish Lake

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

EPA Impairment Status

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

Causes of impairment

Impaired biota (cause unknown)Mercury

Designated uses not supporting: Aquatic life, Fish consumption.

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

Source: EPA ATTAINS assessment unit MN56-0684-00 · Official waterbody report

Nearby Lakes in Otter Tail County

Schmidt Lake1.9 miView →Holtz Lake1.3 miView →Long Lake2 miView →Loon Lake1.8 miView →Brekke Lake2 miView →Pleasant Lake1.9 miView →

Frequently asked questions about Fish Lake

Where is Fish Lake?: Fish Lake is a lake in Otter Tail County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Fish Lake?: Fish Lake in Otter Tail County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 14.1 ft. Surface area: 929 acres.
Is Fish Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Fish Lake is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), mercury. Check local advisories before you swim.
How deep is Fish Lake?: Fish Lake has a maximum depth of 14.1 feet. The lake covers 929 acres.
Are there boat ramps on Fish Lake?: Fish Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Fish Lake. Public access is listed as yes.
Can I fish at Fish Lake?: Fish 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.