Skip to main content
LakeQuality

Okamanpeedan Lake

Martin County, Minnesota2,233 acresView mapDirections

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

Max depth
5 ft
Bathymetric survey
Area
2,233 acres
Surface area
Shoreline
12.6 mi
Measured length
  • Impaired · Nutrients (phosphorus, nitrogen)
  • 5 ft max depth
  • Public access

Okamanpeedan Lake in Martin County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 5 ft. Surface area: 2233 acres.

Loading map…

Okamanpeedan Lake is a 2,233-acre lake in Martin County, Minnesota with a maximum depth of 5 feet (4-foot average). 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 Okamanpeedan Lake is good for

From access and monitoring records, not editorial picks.

  • Boat launch1 documented ramp
  • Big water2,233 acres

Swimming conditions

No reading

Recreation use not supported

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

Whether Okamanpeedan 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 Mankato →

Get alerts for Okamanpeedan Lake →

Water quality measurements for Okamanpeedan Lake

These are the measurements Minnesota PCA publishes for Okamanpeedan 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 Okamanpeedan Lake

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

Lake Details

Max depth

5 ft

Average depth

3.6 ft

Surface area

2,233 acres

Shoreline

12.6 mi

Public access

Yes

Listed by Minnesota PCA

Recreation & Access

1
Boat Landings
Yes
Public Access
  • Okamanpeedan 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 Okamanpeedan Lake

Compare lakeside cabins, hotels, and vacation rentals near Okamanpeedan Lake in Martin 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 Okamanpeedan 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 Okamanpeedan Lake’s readings

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


Or email

Fishing Okamanpeedan Lake

EPA Impairment Status

Okamanpeedan Lake 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 MN46-0051-00 · Official waterbody report

Nearby Lakes in Martin County

Frequently asked questions about Okamanpeedan Lake

Where is Okamanpeedan Lake?

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

What is the water quality of Okamanpeedan Lake?

Okamanpeedan Lake in Martin County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Maximum depth: 5 ft. Surface area: 2233 acres.

Measurements on this page ↑

Is Okamanpeedan Lake safe to swim in?

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

Swimming on this page ↑

How deep is Okamanpeedan Lake?

Okamanpeedan Lake has a maximum depth of 5 feet and an average depth of 3.6 feet. The lake covers 2233 acres.

Are there boat ramps on Okamanpeedan Lake?

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

Access on this page ↑

Can I fish at Okamanpeedan Lake?

Okamanpeedan 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.

Access on this page ↑

Where this data comes from

Measurements for Okamanpeedan Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database

Lake details from Minnesota DNR LakeFinder

Named boat-access points from the USGS National Boat Ramps inventory