Lower Nemahbin Lake vs Nagawicka Lake
Water quality, depth, fish species, and recreation comparison.
Lower Nemahbin Lake has a higher water quality grade (A, Excellent) than Nagawicka Lake (B, Good). Both are in Waukesha County, Wisconsin.
Both Lower Nemahbin Lake and Nagawicka 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 — Lower Nemahbin Lake (A) versus Nagawicka Lake (B). 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.
Lower Nemahbin Lake
Good clarity, visible to about 10.9 ft.
Nagawicka Lake
Moderate clarity, visible to about 9.5 ft.
Side-by-Side Metrics
| Metric | Lower Nemahbin Lake | Nagawicka Lake |
|---|---|---|
| Overall Grade | A (Excellent) | B (Good) |
| Water Clarity | 10.9 ft | 9.5 ft |
| Phosphorus | 11 µg/L | 13.5 µg/L |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | - | - |
| Surface Area | 268 acres | 917 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | mesotrophic | mesotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Lower Nemahbin Lake wins on overall water quality with a Grade A versus Nagawicka Lake's Grade B. Water clarity: 10.9 ft vs 9.5 ft. For fishing diversity, Lower Nemahbin Lake also leads with 0 species.