South Oscar Lake

Details

DNR lake ID

21025702

County

Douglas

Surface area

997 acres

Maximum depth

25 feet

Mean depth

13 feet

Shallow water (littoral) area

473 acres, 47% of the lake

Shoreline

11.4 miles

Average water clarity

6.5 feet (Secchi disk, 5 readings)

Latest DNR fish survey

April 2025, targeted survey

Surveys on record

16, since 1978

Game fish caught in the 2025 survey

muskellunge 56

Fish species recorded

black crappie, bluegill, green sunfish, hybrid sunfish, largemouth bass, muskellunge, northern pike, pumpkinseed, sunfish, walleye, yellow perch, and 13 other species

Stocked in 2025

walleye fingerlings (11,000)

Public accesses (DNR survey record)

1, owned by DNR

Infested waters list

Eurasian watermilfoil, zebra mussel

Fish consumption

Follow the statewide guidelines; fish from this lake have been tested

Size

500 to 1,999 acres

Deepest point

15 to 29 feet

Public access

Yes

Stocked in the last 3 years

Yes

Sources

• Minnesota DNR LakeFinder
  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.