Delavan Lake vs Geneva Lake
Water quality, depth, fish species, and recreation comparison.
Geneva Lake has a higher water quality grade (A, Excellent) than Delavan Lake (C, Fair). Both are in Walworth County, Wisconsin.
C
Delavan Lake
Walworth County, Wisconsin
Good clarity, visible to about 10 ft.
A
Geneva Lake
Walworth County, Wisconsin
Crystal clear, you can see 19 ft down.
Side-by-Side Metrics
| Metric | Delavan Lake | Geneva Lake |
|---|---|---|
| Overall Grade | C (Fair) | A (Excellent) |
| Water Clarity | 10 ft | 19 ft |
| Phosphorus | 73 µg/L | 13 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 52 ft | 135 ft |
| Surface Area | 1.9K acres | 5.4K acres |
| Public Access | Yes | Yes |
| Fish Species | 6 | 6 |
| Trophic State | eutrophic | oligotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Geneva Lake wins on overall water quality with a Grade A versus Delavan Lake's Grade C. Water clarity: 19 ft vs 10 ft. For fishing diversity, Geneva Lake also leads with 6 species.