Straight Lake State Park
Straight Lake State Park is a state park in Polk County. It was established in 2002. 8 graded lakes are within 15 miles of the park, including Moccasin Lake, Big Butternut Lake, Unnamed Lake.
Straight Lake State Park is a Wisconsin State Park covering an unrecorded acreage acres. State parks are the most heavily-developed of the public-land designations — campground, picnic, boat-launch, interpretive-center. 8 graded lakes are within easy reach of the park, with an average grade of C. Antler Lake (A) is the cleanest of the set.
For visitors planning around water quality, the nearby-lakes list below is the practical tool: a park is only as good as the lake you intend to use it from, and the LakeGrade for that lake gives you the water-clarity, nutrient, and algal-pressure context you need.
Official Resources
Nearby Graded Lakes (within 15 mi)
Lakes closest to Straight Lake State Park, weighted by size. Click a lake for its full water quality grade, fish species, and depth.
| Lake | County | Grade | Surface Area | Distance |
|---|---|---|---|---|
| Moccasin Lake | Polk | B | - | 2.7 mi |
| Big Butternut Lake | Polk | D | - | 3.2 mi |
| Unnamed Lake | Polk | F | - | 3.3 mi |
| Ward Lake | Polk | C | - | 4.6 mi |
| Antler Lake | Polk | A | - | 4.6 mi |
| Pogo Lake | Polk | C | - | 4.6 mi |
| Little Butternut Lake | Polk | D | - | 4.9 mi |
| Clam Lake | Burnett | D | 1.2K acres | 13 mi |
Other Parks in the Area
- Interstate Park— State Park, 19 mi
- Willow River State Park— State Park, 42.5 mi
Source: EPA National Aquatic Resource Surveys, 2026.