Koronis Lake (main lake)

Details

DNR lake ID

73020002

County

Stearns

Surface area

2,968 acres

Maximum depth

132 feet

Mean depth

29 feet

Shallow water (littoral) area

1,176 acres, 40% of the lake

Shoreline

15.8 miles

Average water clarity

4.7 feet (Secchi disk, 15 readings)

Latest DNR fish survey

October 2025, targeted survey

Surveys on record

31, since 1977

Game fish caught in the 2025 survey

walleye 155

Fish species recorded

black crappie, bluegill, channel catfish, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, smallmouth bass, walleye, white crappie, yellow perch, and 25 other species

Stocked in 2025

walleye fry (1,082,016)

Stocked in 2024

walleye fry (403,817)

Stocked in 2023

walleye fry (1,201,133)

Stocking years on record

9 of the last 10 (2016 to 2025)

Public accesses (DNR survey record)

5, owned by DNR, township, county, city

Infested waters list

starry stonewort, zebra mussel

Eating advice, sensitive populations

yellow perch: all sizes - 1 serving/month

Eating advice, general populations

crappie: all sizes - 2 servings/week; yellow perch: all sizes - 2 servings/week

Size

2,000 acres or more

Deepest point

60 feet or more

Public access

Yes

Stocked in the last 3 years

Yes

Lake-specific eating advice

Yes

Sources

• Minnesota DNR LakeFinder
  Checked September 24, 2026
• Minnesota Department of Health fish consumption guidelines
  Checked September 24, 2026

Survey catches show what DNR nets and electrofishing found on the survey date, not how the fishing is today. Check the current regulations and the Department of Health advice before you keep fish, and confirm access conditions before you tow a boat.