Lakes / Wisconsin / Grand Lake (Millpond)

Grand Lake (Millpond), Wisconsin

242 acres

Surface Area

8 ft

Max Depth

3 ft

Average Depth

791 ft

Surface Elevation

Where It Sits, and How Deep It Goes

Locator - Wisconsin

43.69 degrees N, 89.12 degrees W - Green Lake County. State and county outlines drawn from Census boundary data; the lake marker is placed by its DNR coordinates, not by eye. Schematic - not a survey map.

Depth Profile - Grand Lake (Millpond)

Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map. The benchmark is the state itself: Wisconsin Lakes defines a shallow lake as under 20 ft at its deepest, with an average depth under 10 ft.

How Grand Lake (Millpond) Stacks Up

A shallow lake - typical of most Wisconsin lakes, which run under 20 ft at their deepest.
About 45 miles from Madison, as the crow flies.
4 fish species on the DNR list for this lake.

Fish Species

PanfishLargemouth BassNorthern PikeWalleye

Species recorded for this lake. Presence only - no abundance ratings.

Facts and Figures

Waterbody ID (WBIC)161100

CountyGreen Lake

Lake TypeDrainage

Coordinates43.6894, -89.1219

Deepest Natural Lakes in Wisconsin

#	Lake	County	Surface Area	Max Depth
1	Green Lake	Green Lake	7,920 acres	236 ft
2	Geneva Lake	Walworth	5,401 acres	135 ft
3	Elkhart Lake	Sheboygan	292 acres	119 ft
4	Trout Lake	Vilas	3,864 acres	117 ft
5	Beaver Dam Lake	Barron	1,163 acres	106 ft

Largest Lakes in Wisconsin

#	Lake	County	Surface Area	Max Depth
1	Lake Winnebago	Winnebago, Fond du Lac, Calumet	131,939 acres	21 ft
2	Lake Pepin	Pierce, Buffalo, Pepin	24,550 acres	60 ft
3	Petenwell Lake	Adams, Wood, Juneau	23,173 acres	44 ft
4	Lake Chippewa	Sawyer	14,593 acres	92 ft
5	Lake Poygan	Winnebago, Waushara	14,024 acres	11 ft

Sources: Wisconsin DNR lake data (WBIC 161100); USGS; Wisconsin Lakes (shallow-lake benchmark). Verified October 28, 2026.