Willow River State Park
Willow River State Park is a state park in St. Croix County. It was established in 1967. 6 lakes with water-quality readings are within 15 miles of the park, including Bass Lake Pump Site, Lake Mallalieu, Lake St Croix.
Willow River State Park State Park spans an unrecorded acreage acres in Wisconsin — a designated recreation destination with the full set of facilities the state park system provides. 6 measured lakes are within easy reach of the park. Bass Lake Pump Site has the lowest nutrient and algae readings of the set.
State parks pair well with the lake pages: the park itself usually has interpretive signage explaining the local lake system, but the per-lake readings tell you which actual lake in the system to head to.
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Official Resources
Nearby Lakes (within 15 mi)
Lakes closest to Willow River State Park, weighted by size. Click a lake for its water-quality readings, fish species, and depth.
| Lake | County | Surface Area | Distance |
|---|---|---|---|
| Bass Lake Pump Site | St. Croix | 370 acres | 3.2 mi |
| Lake Mallalieu | St. Croix | 289 acres | 4.2 mi |
| Lake St Croix | St. Croix | 7,696 acres | 9.3 mi |
| Bass Lake | St. Croix | - | 4.3 mi |
| Cedar Lake | Polk | 1,120 acres | 14.5 mi |
| Apple Lake | St. Croix | 110 acres | 12.1 mi |
Other Parks in the Area
- Kinnickinnic State Park— State Park, 13.4 mi
- Interstate Park— State Park, 25.6 mi
- Straight Lake State Park— State Park, 42.5 mi
Where to stay near Willow River State Park
Compare cabins, hotels, and vacation rentals near Willow River State Park — find a place to stay close to the park and its nearby lakes.
Top-rated places to stay near Willow River State Park
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Source: EPA National Aquatic Resource Surveys, 2026.