Port Perry Lake North Arm vs Port Perry Lake South Arm
Water quality, depth, fish species, and recreation comparison.
Port Perry Lake North Arm and Port Perry Lake South Arm both received the same overall water quality grade of B (Good). Both are in Perry County, Wisconsin.
Both Port Perry Lake North Arm and Port Perry Lake South Arm sit in Missouri. 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: Port Perry Lake North Arm (B) and Port Perry Lake South Arm (B) 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.
Port Perry Lake North Arm
Moderate clarity, visible to about 7.4 ft.
Port Perry Lake South Arm
Moderate clarity, visible to about 9.5 ft.
Side-by-Side Metrics
| Metric | Port Perry Lake North Arm | Port Perry Lake South Arm |
|---|---|---|
| Overall Grade | B (Good) | B (Good) |
| Water Clarity | 7.4 ft | 9.5 ft |
| Phosphorus | 9.5 µg/L | 8.3 µg/L |
| Chlorophyll-a (Algae) | 2.9 µg/L | 2.3 µg/L |
| Maximum Depth | - | - |
| Surface Area | 12 acres | 187 acres |
| Public Access | Unknown | Unknown |
| Fish Species | 0 | 0 |
| Trophic State | mesotrophic | oligotrophic |
Bold value = better for that metric (lower phosphorus / chlorophyll = cleaner; higher Secchi / depth / species count = better).
Verdict
Both lakes earn the same Grade B. The tiebreakers come down to clarity (Port Perry Lake North Arm: 7.4 ft, Port Perry Lake South Arm: 9.5 ft) and what you want from the lake. Port Perry Lake North Arm matches its peer on species count.