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LakeQuality

Skokie Lagoon 6 Lake vs Skokie Lagoon 7 Lake

Water quality, depth, fish species, and recreation comparison.

Skokie Lagoon 6 Lake has a higher water quality grade (D, Poor) than Skokie Lagoon 7 Lake (F, Very Poor). Both are in Cook County, Wisconsin.

Both Skokie Lagoon 6 Lake and Skokie Lagoon 7 Lake sit in Illinois. A same-state comparison strips out the state-level water-quality regime as a variable: any grade differences here are about the lakes themselves, not the agencies grading them. The grades are close: Skokie Lagoon 6 Lake (D) and Skokie Lagoon 7 Lake (F) are within one letter of each other on the LakeGrade rubric. The per-parameter sub-grades below will show where the small differences actually live.

With grades this close, the choice between the two lakes turns on non-water-quality factors: depth, fish species, public access, distance from home. The per-lake pages below cover all of those.

D

Skokie Lagoon 6 Lake

Cook County, Wisconsin

Murky, only visible to about 4 ft.

F

Skokie Lagoon 7 Lake

Cook County, Wisconsin

Very murky, less than 1.5 ft of visibility.

Side-by-Side Metrics

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

Source: EPA National Aquatic Resource Surveys, 2026.

MetricSkokie Lagoon 6 LakeSkokie Lagoon 7 Lake
Overall GradeD (Poor)F (Very Poor)
Water Clarity4 ft1.5 ft
PhosphorusNo dataNo data
Chlorophyll-a (Algae)No dataNo data
Maximum Depth--
Surface Area378 acres51 acres
Public AccessUnknownUnknown
Fish Species00
Trophic Stateeutrophichypereutrophic

Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).

Verdict

Skokie Lagoon 6 Lake wins on overall water quality with a Grade D versus Skokie Lagoon 7 Lake's Grade F. Water clarity: 4 ft vs 1.5 ft. For fishing diversity, Skokie Lagoon 6 Lake also leads with 0 species.