Interstate Park
Interstate Park is a state park in Minnesota, Polk County. It was established in 1895. 8 graded lakes are within 15 miles of the park, including Poplar Lake, Lotus Lake, Sand Lake.
Interstate Park State Park spans 21,498 acres in Wisconsin — a designated recreation destination with the full set of facilities the state park system provides. 8 graded lakes are within easy reach of the park, with an average grade of B. Sand Lake (A) is the cleanest of the set.
State parks pair well with the LakeGrade dataset: the park itself usually has interpretive signage explaining the local lake system, but the per-lake grade tells you which actual lake in the system to head to.
Official Resources
Nearby Graded Lakes (within 15 mi)
Lakes closest to Interstate Park, weighted by size. Click a lake for its full water quality grade, fish species, and depth.
| Lake | County | Grade | Surface Area | Distance |
|---|---|---|---|---|
| Poplar Lake | Polk | B | - | 3.3 mi |
| Lotus Lake | Polk | F | - | 5 mi |
| Sand Lake | Polk | A | - | 5.4 mi |
| Horse Lake | Polk | D | - | 6.3 mi |
| North Twin Lake | Polk | A | 639 acres | 15 mi |
| South Twin Lake | Polk | A | 639 acres | 15 mi |
| Deer Lake | Polk | A | - | 6.5 mi |
| Round Lake | Polk | B | - | 6.9 mi |
Other Parks in the Area
- Straight Lake State Park— State Park, 19 mi
- Willow River State Park— State Park, 25.6 mi
- Kinnickinnic State Park— State Park, 38.9 mi
Source: EPA National Aquatic Resource Surveys, 2026.