WI · ranked by public data

The 9 Biggest Lakes in Marathon County, Wisconsin

9 Marathon County lakes cover at least 50 acres, out of 61 documented lakes in the county. Updated July 2026.

11,851 ac
1,851 acres
Marathon County, WI
Lake Wausau
enhancedDepth mapWater dataDNR forecast
44.92, -89.631,851 acres | 30 ft max4 public access pointsPanfish, Northern Pike
1,851 acres · 30 ft max depth · 4 public landings
2204 ac
204 acres
Marathon County, WI
Pike Lake
enhancedDepth mapWater data
44.81, -89.35204 acres | 34 ft max1 public access pointPanfish, Largemouth Bass
204 acres · 34 ft max depth · 1 public landing
3184 ac
184 acres
Marathon County, WI
Eau Claire Flowage
enhancedDepth mapWater data
44.92, -89.61184 acres | 10 ft max1 public access pointNorthern Pike, Panfish
184 acres · 10 ft max depth · 1 public landing
4177 ac
177 acres
Marathon County, WI
Big Bass Lake
enhancedDepth mapWater data
44.72, -89.43177 acres | 13 ft max1 public access pointPanfish, Largemouth Bass
177 acres · 13 ft max depth · 1 public landing
5104 ac
104 acres
Marathon County, WI
Mission Lake
enhancedDepth mapWater data
44.78, -89.35104 acres | 26 ft max1 public access pointPanfish, Largemouth Bass
104 acres · 26 ft max depth · 1 public landing
699 ac
99 acres
Marathon County, WI
Mayflower Lake
enhancedDepth mapStockedWater data
44.91, -89.2699 acres | 16 ft max1 public access pointLargemouth Bass, Northern Pike
99 acres · 16 ft max depth · 1 public landing
796 ac
96 acres
Marathon County, WI
Norrie Lake
enhancedDepth mapStockedWater data
44.88, -89.2696 acres | 19 ft max1 public access pointPanfish, Largemouth Bass
96 acres · 19 ft max depth · 1 public landing
869 ac
69 acres
Marathon County, WI
Mud Lake
enhancedDepth mapStocked
44.92, -89.2969 acres | 17 ft max1 public access pointLargemouth Bass, Panfish
69 acres · 17 ft max depth · 1 public landing
956 ac
56 acres
Marathon County, WI
Stenson Lake
availableDepth map
44.71, -89.2756 acres | 22 ft max0 public access pointsSpecies pending
56 acres · 22 ft max depth · No verified public access

Methodology

How this list is built

Ranked strictly by documented surface acres from DNR lake records.
Flowages and reservoirs count — they are lakes in the DNR's books, and some of the state's biggest water is impounded.
Lakes without documented acreage are excluded rather than estimated.
Lakes under 50 acres — or without documented acreage — are excluded from rankings.
Public access is shown for every lake but never affects the ranking.

FAQ

Marathon County lake records

What is the biggest lake in Marathon County?

Lake Wausau — Lake Wausau in Marathon County is the biggest lake in Marathon County, at 1,851 acres.

Biggest lakes statewide Deepest lakes in Marathon County Clearest lakes in Marathon County Lakes with the most public access in Marathon County All Marathon County lakes

Source data: Wisconsin DNR lake and monitoring records as aggregated by LakeList. Figures reflect the most recent documented values, not new surveys — verify access and rules before you go. Lake outlines are shoreline shapes from LakeList and the USGS National Hydrography Dataset; they illustrate a lake's form and are not depth or navigation charts.

WI · ranked by public data

The 9 Biggest Lakes in Marathon County, Wisconsin

9 Marathon County lakes cover at least 50 acres, out of 61 documented lakes in the county. Updated July 2026.

11,851 ac
1,851 acres
Marathon County, WI
Lake Wausau
enhancedDepth mapWater dataDNR forecast
44.92, -89.631,851 acres | 30 ft max4 public access pointsPanfish, Northern Pike
1,851 acres · 30 ft max depth · 4 public landings
2204 ac
204 acres
Marathon County, WI
Pike Lake
enhancedDepth mapWater data
44.81, -89.35204 acres | 34 ft max1 public access pointPanfish, Largemouth Bass
204 acres · 34 ft max depth · 1 public landing
3184 ac
184 acres
Marathon County, WI
Eau Claire Flowage
enhancedDepth mapWater data
44.92, -89.61184 acres | 10 ft max1 public access pointNorthern Pike, Panfish
184 acres · 10 ft max depth · 1 public landing
4177 ac
177 acres
Marathon County, WI
Big Bass Lake
enhancedDepth mapWater data
44.72, -89.43177 acres | 13 ft max1 public access pointPanfish, Largemouth Bass
177 acres · 13 ft max depth · 1 public landing
5104 ac
104 acres
Marathon County, WI
Mission Lake
enhancedDepth mapWater data
44.78, -89.35104 acres | 26 ft max1 public access pointPanfish, Largemouth Bass
104 acres · 26 ft max depth · 1 public landing
699 ac
99 acres
Marathon County, WI
Mayflower Lake
enhancedDepth mapStockedWater data
44.91, -89.2699 acres | 16 ft max1 public access pointLargemouth Bass, Northern Pike
99 acres · 16 ft max depth · 1 public landing
796 ac
96 acres
Marathon County, WI
Norrie Lake
enhancedDepth mapStockedWater data
44.88, -89.2696 acres | 19 ft max1 public access pointPanfish, Largemouth Bass
96 acres · 19 ft max depth · 1 public landing
869 ac
69 acres
Marathon County, WI
Mud Lake
enhancedDepth mapStocked
44.92, -89.2969 acres | 17 ft max1 public access pointLargemouth Bass, Panfish
69 acres · 17 ft max depth · 1 public landing
956 ac
56 acres
Marathon County, WI
Stenson Lake
availableDepth map
44.71, -89.2756 acres | 22 ft max0 public access pointsSpecies pending
56 acres · 22 ft max depth · No verified public access

Methodology

How this list is built

Ranked strictly by documented surface acres from DNR lake records.
Flowages and reservoirs count — they are lakes in the DNR's books, and some of the state's biggest water is impounded.
Lakes without documented acreage are excluded rather than estimated.
Lakes under 50 acres — or without documented acreage — are excluded from rankings.
Public access is shown for every lake but never affects the ranking.

FAQ

Marathon County lake records

What is the biggest lake in Marathon County?

Lake Wausau — Lake Wausau in Marathon County is the biggest lake in Marathon County, at 1,851 acres.

Biggest lakes statewide Deepest lakes in Marathon County Clearest lakes in Marathon County Lakes with the most public access in Marathon County All Marathon County lakes

The 9 Biggest Lakes in Marathon County, Wisconsin

Lake Wausau

Pike Lake

Eau Claire Flowage

Big Bass Lake

Mission Lake

Mayflower Lake

Norrie Lake

Mud Lake

Stenson Lake

How this list is built

Marathon County lake records

What is the biggest lake in Marathon County?

The 9 Biggest Lakes in Marathon County, Wisconsin

Lake Wausau

Pike Lake

Eau Claire Flowage

Big Bass Lake

Mission Lake

Mayflower Lake

Norrie Lake

Mud Lake

Stenson Lake

How this list is built

Marathon County lake records

What is the biggest lake in Marathon County?