Antelope Lake
Pierce County, WisconsinEutrophic
Antelope Lake is a productive, nutrient-rich eutrophic lake in Pierce County, ND. Water quality is graded D based on 2 sampling years through 2025. Compared to the 2 other monitored lakes in Pierce County, Antelope Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2025-10-01. Grade methodology: LakeGrade methodology.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 3.5 ft. Chlorophyll-a: 43.6 µg/L. Trophic State Index: 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.5 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 43.6 µg/L | F |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #2 of 3 lakes in Pierce County
Cleaner Lakes Within 30 Miles
Antelope Lake holds Grade D. 4 nearby lakes hold higher grades.
- ARound LakeMcHenry County · 9.7 mi · Two grade letters higher (D → A)
- CHarvey Dam LakeWells County · 15.9 mi · Higher grade (D → C)
- CBalta Dam LakePierce County · 14 mi · Higher grade (D → C)
- CLake GeorgeMcHenry County · 18.7 mi · Higher grade (D → C)
Nearby Lakes in Pierce County
More Wisconsin Lake Rankings
Other Grade D Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-10-01
Monitoring stations: 2