Green Lake vs Rush Lake
Water quality, depth, fish species, and recreation comparison.
Green Lake has a higher water quality grade (B, Good) than Rush Lake (C, Fair). Both are in Wisconsin.
Both Green Lake and Rush Lake sit in Wisconsin. 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. These two are within a letter of each other on the rubric — Green Lake (B) versus Rush Lake (C). The deciding factors for a recreational visitor are likely physical (depth, access, fish species) rather than water-quality differences.
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.
Green Lake
No clarity data.
Rush Lake
Very murky, less than 3.2 ft of visibility.
Side-by-Side Metrics
| Metric | Green Lake | Rush Lake |
|---|---|---|
| Overall Grade | B (Good) | C (Fair) |
| Water Clarity | No data | 3.2 ft |
| Phosphorus | 20.6 µg/L | 26 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | - | 5 ft |
| Surface Area | 7.3K acres | 2.7K acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | mesotrophic | eutrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Green Lake wins on overall water quality with a Grade B versus Rush Lake's Grade C. For fishing diversity, Green Lake also leads with 0 species.