Geneva Lake vs Lake Beulah
Water quality, depth, fish species, and recreation comparison.
Geneva Lake has a higher water quality grade (A, Excellent) than Lake Beulah (A, Excellent). Both are in Walworth County, Wisconsin.
Both Geneva Lake and Lake Beulah 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. The grades are close: Geneva Lake (A) and Lake Beulah (A) 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.
Geneva Lake
Crystal clear, you can see 20.2 ft down.
Lake Beulah
Good clarity, visible to about 10 ft.
Side-by-Side Metrics
| Metric | Geneva Lake | Lake Beulah |
|---|---|---|
| Overall Grade | A (Excellent) | A (Excellent) |
| Water Clarity | 20.2 ft | 10 ft |
| Phosphorus | 13 µg/L | 13.4 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 135 ft | 58 ft |
| Surface Area | 5.4K acres | 812 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | oligotrophic | mesotrophic |
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 Lake Beulah's Grade A. Water clarity: 20.2 ft vs 10 ft. For fishing diversity, Geneva Lake also leads with 0 species.