Safest Lakes to Swim Near Hayward
Wisconsin
30 lakes within driving distance of Hayward, Wisconsin pass our swim-safety screen — grade A/B water, low algae, and public access. 0 have direct bacteria (E. coli) testing on record. 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.
Within reasonable driving distance of Hayward sit 30 graded lakes — a lake-dense area that gives residents real choice on any given weekend. The average grade across the nearby set is A.
Filtered for swimming, the nearby-lake list narrows further. swimming-specific signals — fish species, public access, depth profile, motor-boat congestion — interact with the LakeGrade rubric in different ways depending on the use case.
| # | Lake | County | Grade | Swim Safety | Distance | Clarity | Depth |
|---|---|---|---|---|---|---|---|
| 1 | Grindstone Lake | Sawyer | A | Low algae | 6.6 mi | 17.4 ft | 60 ft |
| 2 | Round Lake | Sawyer | A | Low algae | 7.9 mi | 21.1 ft | 74 ft |
| 3 | Little Round Lake | Sawyer | A | Low algae | 8.2 mi | 17.3 ft | 38 ft |
| 4 | Osprey Lake | Sawyer | A | Low algae | 9.3 mi | 16 ft | 32 ft |
| 5 | Lake Placid | Sawyer | A | Low algae | 9.8 mi | 15 ft | 30 ft |
| 6 | Billy Boy Flowage Lake | Sawyer | A | Limited data | 10.4 mi | - | 46 ft |
| 7 | Clear Lake | Sawyer | A | Low algae | 10.6 mi | 17.2 ft | 32 ft |
| 8 | Spring Lake | Washburn | A | Limited data | 11.4 mi | - | 24 ft |
| 9 | Stone Lake | Washburn | A | Low algae | 12.5 mi | 23 ft | 49 ft |
| 10 | Blueberry Lake | Sawyer | A | Low algae | 14.5 mi | 14.9 ft | 29 ft |
| 11 | Slim Lake | Washburn | A | Low algae | 15.3 mi | 15.7 ft | 42 ft |
| 12 | Cable Lake | Bayfield | A | Low algae | 16.9 mi | 15.5 ft | - |
| 13 | Lower Eau Claire Lake | Bayfield | A | Limited data | 18.2 mi | 18.5 ft | 41 ft |
| 14 | Samoset Lake | Bayfield | A | Low algae | 18.9 mi | 15 ft | 40 ft |
| 15 | Trego Lake | Washburn | A | Limited data | 19.8 mi | - | 36 ft |
| 16 | Middle Eau Claire Lake | Bayfield | A | Low algae | 20.2 mi | 18.2 ft | 66 ft |
| 17 | Big Bass Lake | Washburn | A | Limited data | 20.4 mi | - | 27 ft |
| 18 | Big Bass Lake | Washburn | A | Limited data | 20.5 mi | 17.9 ft | 27 ft |
| 19 | Upper Eau Claire Lake | Bayfield | A | Low algae | 20.5 mi | 18.7 ft | 92 ft |
| 20 | Bony Lake | Bayfield | A | Low algae | 20.9 mi | 19.8 ft | 55 ft |
| 21 | Leader Lake | Douglas | A | Low algae | 21.9 mi | 15.3 ft | 56 ft |
| 22 | Lake Owen | Bayfield | A | Low algae | 22 mi | 24.6 ft | 95 ft |
| 23 | Bond Lake | Douglas | A | Limited data | 22.1 mi | 18 ft | 67 ft |
| 24 | Bardon Lake | Douglas | A | Low algae | 22.7 mi | 27 ft | 102 ft |
| 25 | Whitefish Lake | Douglas | A | Low algae | 22.9 mi | 25.3 ft | 102 ft |
| 26 | Crystal Lake | Bayfield | A | Limited data | 23.1 mi | 16.2 ft | 29 ft |
| 27 | Whitefish Lake | Douglas | A | Low algae | 23.4 mi | 24.5 ft | 102 ft |
| 28 | Middle Kimball Lake | Washburn | A | Low algae | 23.8 mi | 16 ft | 77 ft |
| 29 | Loon Lake | Washburn | A | Limited data | 24 mi | - | 63 ft |
| 30 | Namekagon Lake | Bayfield | A | Limited data | 24.4 mi | - | 23 ft |
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Source: EPA National Aquatic Resource Surveys, 2026.