What lakes are in the Lower Fox-Wolf (Lake Winnebago Pool)?

18 monitored lakes drain through the Lower Fox-Wolf (Lake Winnebago Pool), including Oneida Lake, Forest Lake, Kettle Moraine Lake, and others. The watershed spans Wisconsin.

What is the cleanest lake in the Lower Fox-Wolf (Lake Winnebago Pool)?

Oneida Lake in Outagamie County is the highest-rated lake in the Lower Fox-Wolf (Lake Winnebago Pool) with a Grade A.

What is a HUC8 watershed?

HUC8 (Hydrologic Unit Code, 8-digit) is the USGS classification for "subbasins" — the level at which major named river systems are usually identified. The Lower Fox-Wolf (Lake Winnebago Pool) corresponds to HUC8 04030204.

Lower Fox-Wolf (Lake Winnebago Pool)

Wisconsin · 18 monitored lakes · 4 grade A · 2 grade B · HUC8 04030204

Lake Winnebago and the Fox-Wolf system in east-central Wisconsin — the largest inland lake in Wisconsin and a major fishery.

Reviewed by LakeQuality Editorial Team · Updated Jul 20, 2026

Counties in this watershed

Winnebago, Calumet, Fond du Lac, Outagamie

Monitored Lakes (18)

#	Lake	County	Grade	Clarity	Area	Depth
1	Oneida Lake	Outagamie	A	-	12 acres	-
2	Forest Lake	Fond du Lac	A	14 ft	51 acres	32 ft
3	Kettle Moraine Lake	Fond du Lac	A	11 ft	209 acres	30 ft
4	De Neveu Lake	Fond du Lac	A	11 ft	80 acres	67 ft
5	Long Lake	Fond du Lac	B	9.1 ft	423 acres	47 ft
6	Auburn Lake	Fond du Lac	B	7.6 ft	90 acres	29 ft
7	Rush Lake	Winnebago	C	3.2 ft	2,729 acres	5 ft
8	Wolf Lake	Fond du Lac	C	5 ft	75 acres	47 ft
9	Mauthe Lake	Fond du Lac	C	6 ft	70 acres	23 ft
10	Bernice Lake	Fond du Lac	D	6.5 ft	32 acres	11 ft
11	Lake Winneconne	Winnebago	F	2.4 ft	4,553 acres	9 ft
12	Lake Butte des Morts	Winnebago	F	2.3 ft	8,581 acres	9 ft
13	Lake Poygan	Winnebago	F	2.5 ft	14,024 acres	11 ft
14	Beckers Lake	Calumet	F	1.5 ft	35 acres	52.5 ft
15	Chilton Millpond	Calumet	F	2.9 ft	11 acres	7 ft
16	Dickman Lake	Fond du Lac	F	3 ft	6 acres	12 ft
17	Little Lake Butte des Morts	Winnebago	F	2 ft	1,200 acres	18 ft
18	Giltners Lake	Fond du Lac	F	-	16 acres	13 ft

Other Watersheds

St. Croix Watershed

Minnesota & Wisconsin · HUC8 07030005

Wisconsin River Watershed

Wisconsin · HUC8 07070005

Wolf River Watershed

Wisconsin · HUC8 04030202

Chippewa River Watershed

Wisconsin · HUC8 07050001

Lake Superior Basin (MN+WI)

Minnesota & Wisconsin · HUC8 04010102

Sheboygan-Manitowoc

Wisconsin · HUC8 04030103

All watersheds →All Wisconsin lakes →

Source: EPA National Aquatic Resource Surveys, 2026.