Best Lakes for Swimming Near Green Bay
Wisconsin
8 swimming lakes within driving distance of Green Bay, Wisconsin, ranked by water quality and swimming-specific filters. Filtered for grade A or B water quality, low algae (chlorophyll-a under 15 µg/L), and public access. Always check local advisories on the day you swim.
A moderate cluster of 8 graded lakes lies within reach of Green Bay, averaging a grade of B. Oneida Lake (A) is the cleanest of the set.
The swimming-specific ranking layered on top of the LakeGrade rubric is what produces the list below: a grade-good lake that does not also support the swimming use case is less useful than a grade-decent lake that does.
| # | Lake | County | Grade | Distance | Clarity | Depth |
|---|---|---|---|---|---|---|
| 1 | Oneida Lake | Outagamie | A | 9.6 mi | - | - |
| 2 | Tuma Lake | Manitowoc | A | 20.9 mi | 10 ft | - |
| 3 | Finnegan Lake | Oconto | A | 29.3 mi | 10 ft | - |
| 4 | Korth Lake | Shawano | A | 30 mi | 12 ft | - |
| 5 | West Alaska Lake | Kewaunee | B | 25.1 mi | 8.5 ft | - |
| 6 | East Alaska Lake | Kewaunee | B | 25.5 mi | 9 ft | - |
| 7 | Krohns Lake | Kewaunee | B | 26.3 mi | 8 ft | - |
| 8 | Pensaukee Lake | Shawano | B | 28 mi | 10.5 ft | - |
Other activities near Green Bay
Source: EPA National Aquatic Resource Surveys, 2026.