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LakeQuality

McCarthy Beach State Park

McCarthy Beach State Park is a state park in Minnesota. It was established in 1945. 8 graded lakes are within 15 miles of the park, including Sturgeon Lake, Side Lake, Perch Lake.

McCarthy Beach State Park is a Minnesota 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. The park is paired with 8 graded lakes nearby — enough for a multi-lake visit. Average grade among them: B.

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.

Designation
State Park
County
Established
1945

Nearby Graded Lakes (within 15 mi)

Lakes closest to McCarthy Beach State Park, weighted by size. Click a lake for its full water quality grade, fish species, and depth.

LakeCountyGradeSurface AreaDistance
Sturgeon LakeSt. LouisA2.0K acres0.5 mi
Side LakeSt. LouisA-0.5 mi
Perch LakeSt. LouisA-1.5 mi
Little Sturgeon LakeSt. LouisC-1.6 mi
West Sturgeon LakeItascaB-2.1 mi
Unnamed LakeSt. LouisB-2.4 mi
South Sturgeon LakeSt. LouisC-2.7 mi
Beatrice LakeItascaA-2.7 mi

Other Parks in the Area

Park location and metadata sourced from Wikidata. For trail maps, camping reservations, and current conditions, visit the official MN DNR page. Lake grades are derived from EPA Water Quality Portal data using Metropolitan Council standards.

Source: EPA National Aquatic Resource Surveys, 2026.