Alexander Lake vs Lake Mohawksin
Water quality, depth, fish species, and recreation comparison.
Lake Mohawksin reads lower on nutrients and algae than Alexander Lake. Both are in Lincoln County, Wisconsin.
Both Alexander Lake and Lake Mohawksin sit in Wisconsin. A same-state comparison strips out the state-level water-quality regime as a variable: any differences in the readings here are about the lakes themselves, not the agencies sampling them. The readings are close: Alexander Lake and Lake Mohawksin sit within a narrow band of each other on phosphorus, chlorophyll-a and clarity. The per-parameter table below shows where the small differences actually live.
With readings 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.
Alexander Lake
Murky, only visible to about 4 ft.
Lake Mohawksin
Murky, only visible to about 4 ft.
Side-by-Side Metrics
| Metric | Alexander Lake | Lake Mohawksin |
|---|---|---|
| Water Clarity | 4 ft | 4 ft |
| Phosphorus | 46.2 µg/L | 34.7 µg/L Better |
| Chlorophyll-a (Algae) | No data | No data |
| Maximum Depth | 36 ft Better | 25 ft |
| Surface Area | 618 acres | 1,515 acres |
| Public Access | Yes | Yes |
| Fish Species | 6 | 6 |
| Trophic State | eutrophic | eutrophic |
A green ✓ marks the better value for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better). Surface area and trophic state carry no tick — a bigger lake is not a better lake.
Swap a lake
Compare Alexander Lake or Lake Mohawksin against a different lake.
Verdict
Lake Mohawksin reads lower on nutrients and algae than Alexander Lake. Water clarity: 4 ft vs 4 ft. For fishing diversity, Lake Mohawksin also leads with 6 species.
Source: EPA National Aquatic Resource Surveys, 2026.