WI · ranked by public data

The 25 Deepest Lakes in Forest County, Wisconsin

46 Forest County lakes are at least 50 acres with a documented maximum depth, out of 195 documented lakes in the county. Updated July 2026.

179 ft
2,039 acres
Forest County, WI
Metonga Lake
enhancedDepth mapStockedWater data
45.54, -88.902,039 acres | 79 ft max3 public access pointsSmallmouth Bass, Walleye
79 ft maximum depth · 2,039 acres · 3 public landings
275 ft
466 acres
Forest County, WI
Birch Lake
enhancedDepth map
45.57, -88.64466 acres | 75 ft max0 public access pointsPanfish, Walleye
75 ft maximum depth · 466 acres · No verified public access
373 ft
1,039 acres
Forest County, WI
Lake Lucerne
enhancedDepth mapStockedAIS recordedWater data
45.53, -88.851,039 acres | 73 ft max1 public access pointSmallmouth Bass, Walleye
73 ft maximum depth · 1,039 acres · 1 public landing
450 ft
62 acres
Forest County, WI
White Deer Lake
enhancedDepth map
45.90, -88.9762 acres | 50 ft max1 public access pointPanfish, Largemouth Bass
50 ft maximum depth · 62 acres · 1 public landing
546 ft
839 acres
Forest County, WI
Franklin Lake
enhancedDepth mapWater data
45.94, -89.00839 acres | 46 ft max1 public access pointPanfish, Smallmouth Bass
46 ft maximum depth · 839 acres · 1 public landing
645 ft
404 acres
Forest County, WI
Julia Lake
enhancedDepth mapStockedWater data
45.80, -89.04404 acres | 45 ft max1 public access pointMusky, Largemouth Bass
45 ft maximum depth · 404 acres · 1 public landing
744 ft
84 acres
Forest County, WI
Ground Hemlock Lake
enhancedDepth mapStocked
45.47, -88.8684 acres | 44 ft max0 public access pointsLargemouth Bass, Northern Pike
44 ft maximum depth · 84 acres · No verified public access
842 ft
1,246 acres
Forest County, WI
Butternut Lake
enhancedDepth mapWater data
45.91, -88.991,246 acres | 42 ft max2 public access pointsSmallmouth Bass, Walleye
42 ft maximum depth · 1,246 acres · 2 public landings
936 ft
75 acres
Forest County, WI
Crystal Lake
enhancedDepth mapWater data
45.38, -88.9375 acres | 36 ft max1 public access pointLargemouth Bass, Panfish
36 ft maximum depth · 75 acres · 1 public landing
1035 ft
64 acres
Forest County, WI
Luna Lake
enhancedDepth mapWater data
45.91, -88.9664 acres | 35 ft max1 public access pointPanfish, Largemouth Bass
35 ft maximum depth · 64 acres · 1 public landing

Rank	Lake	County	Max depth	Acres	Public access
11	Roberts Lake	Forest	31 ft	435	1 landing
12	Little Long Lake	Forest	30 ft	101	—
13	Lake Gordon	Forest	30 ft	51	1 landing
14	Arbutus Lake	Forest	28 ft	163	1 landing
15	Crane Lakeimpaired	Forest	25 ft	355	1 landing
16	Hardwood Lake	Forest	25 ft	78	—
17	Windfall Lake	Forest	25 ft	53	1 landing
18	Bass Lake	Forest	25 ft	52	—
19	Lily Lake	Forest	24 ft	217	1 landing
20	Lake Laura	Forest	22 ft	106	1 landing
21	Saint Johns Lake	Forest	21 ft	107	—
22	Silver Lake	Forest	20 ft	317	1 landing
23	Little Sand Lakeimpaired	Forest	20 ft	237	1 landing
24	Riley Lake	Forest	20 ft	220	—
25	Trump Lake	Forest	20 ft	162	2 landings

Methodology

How this list is built

Ranked strictly by documented maximum depth from DNR lake records. No estimates, no hearsay depths.
Lakes without a documented maximum depth are excluded rather than guessed at.
Lakes under 50 acres — or without documented acreage — are excluded from rankings.
Public access is shown for every lake but never affects the ranking — a deep lake ranks whether or not you can launch on it.

FAQ

Forest County lake records

What is the deepest lake in Forest County?

Metonga Lake — Metonga Lake in Forest County is the deepest documented lake in Forest County, at 79 feet maximum depth.

Deepest lakes statewide Biggest lakes in Forest County Clearest lakes in Forest County Lakes with the most public access in Forest County All Forest 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 25 Deepest Lakes in Forest County, Wisconsin

46 Forest County lakes are at least 50 acres with a documented maximum depth, out of 195 documented lakes in the county. Updated July 2026.

179 ft
2,039 acres
Forest County, WI
Metonga Lake
enhancedDepth mapStockedWater data
45.54, -88.902,039 acres | 79 ft max3 public access pointsSmallmouth Bass, Walleye
79 ft maximum depth · 2,039 acres · 3 public landings
275 ft
466 acres
Forest County, WI
Birch Lake
enhancedDepth map
45.57, -88.64466 acres | 75 ft max0 public access pointsPanfish, Walleye
75 ft maximum depth · 466 acres · No verified public access
373 ft
1,039 acres
Forest County, WI
Lake Lucerne
enhancedDepth mapStockedAIS recordedWater data
45.53, -88.851,039 acres | 73 ft max1 public access pointSmallmouth Bass, Walleye
73 ft maximum depth · 1,039 acres · 1 public landing
450 ft
62 acres
Forest County, WI
White Deer Lake
enhancedDepth map
45.90, -88.9762 acres | 50 ft max1 public access pointPanfish, Largemouth Bass
50 ft maximum depth · 62 acres · 1 public landing
546 ft
839 acres
Forest County, WI
Franklin Lake
enhancedDepth mapWater data
45.94, -89.00839 acres | 46 ft max1 public access pointPanfish, Smallmouth Bass
46 ft maximum depth · 839 acres · 1 public landing
645 ft
404 acres
Forest County, WI
Julia Lake
enhancedDepth mapStockedWater data
45.80, -89.04404 acres | 45 ft max1 public access pointMusky, Largemouth Bass
45 ft maximum depth · 404 acres · 1 public landing
744 ft
84 acres
Forest County, WI
Ground Hemlock Lake
enhancedDepth mapStocked
45.47, -88.8684 acres | 44 ft max0 public access pointsLargemouth Bass, Northern Pike
44 ft maximum depth · 84 acres · No verified public access
842 ft
1,246 acres
Forest County, WI
Butternut Lake
enhancedDepth mapWater data
45.91, -88.991,246 acres | 42 ft max2 public access pointsSmallmouth Bass, Walleye
42 ft maximum depth · 1,246 acres · 2 public landings
936 ft
75 acres
Forest County, WI
Crystal Lake
enhancedDepth mapWater data
45.38, -88.9375 acres | 36 ft max1 public access pointLargemouth Bass, Panfish
36 ft maximum depth · 75 acres · 1 public landing
1035 ft
64 acres
Forest County, WI
Luna Lake
enhancedDepth mapWater data
45.91, -88.9664 acres | 35 ft max1 public access pointPanfish, Largemouth Bass
35 ft maximum depth · 64 acres · 1 public landing

Rank	Lake	County	Max depth	Acres	Public access
11	Roberts Lake	Forest	31 ft	435	1 landing
12	Little Long Lake	Forest	30 ft	101	—
13	Lake Gordon	Forest	30 ft	51	1 landing
14	Arbutus Lake	Forest	28 ft	163	1 landing
15	Crane Lakeimpaired	Forest	25 ft	355	1 landing
16	Hardwood Lake	Forest	25 ft	78	—
17	Windfall Lake	Forest	25 ft	53	1 landing
18	Bass Lake	Forest	25 ft	52	—
19	Lily Lake	Forest	24 ft	217	1 landing
20	Lake Laura	Forest	22 ft	106	1 landing
21	Saint Johns Lake	Forest	21 ft	107	—
22	Silver Lake	Forest	20 ft	317	1 landing
23	Little Sand Lakeimpaired	Forest	20 ft	237	1 landing
24	Riley Lake	Forest	20 ft	220	—
25	Trump Lake	Forest	20 ft	162	2 landings

Methodology

How this list is built

Ranked strictly by documented maximum depth from DNR lake records. No estimates, no hearsay depths.
Lakes without a documented maximum depth are excluded rather than guessed at.
Lakes under 50 acres — or without documented acreage — are excluded from rankings.
Public access is shown for every lake but never affects the ranking — a deep lake ranks whether or not you can launch on it.

FAQ

Forest County lake records

What is the deepest lake in Forest County?

Metonga Lake — Metonga Lake in Forest County is the deepest documented lake in Forest County, at 79 feet maximum depth.

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

The 25 Deepest Lakes in Forest County, Wisconsin

Metonga Lake

Birch Lake

Lake Lucerne

White Deer Lake

Franklin Lake

Julia Lake

Ground Hemlock Lake

Butternut Lake

Crystal Lake

Luna Lake

How this list is built

Forest County lake records

What is the deepest lake in Forest County?

The 25 Deepest Lakes in Forest County, Wisconsin

Metonga Lake

Birch Lake

Lake Lucerne

White Deer Lake

Franklin Lake

Julia Lake

Ground Hemlock Lake

Butternut Lake

Crystal Lake

Luna Lake

How this list is built

Forest County lake records

What is the deepest lake in Forest County?