Cape May County Lake Quality
New Jersey, 5 lakes, measured by NJDEP
Cape May County has 5 monitored lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. 1 of those lake carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. On average, Cape May County lakes carry some of the lowest phosphorus and chlorophyll-a readings in New Jersey, with clear summer transparency across most monitored basins.
The county's lakes lean shallow, which makes the readings sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest measured lake is Unl Lake.
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Quick Answers for Cape May County
Planning a trip? Check special fishing regulations for Unl Lake — or check the official New Jersey fishing regulations.
All Lakes in Cape May County
5 lakes · 1 ranked on readings, 4 without enough sampling1 lake ranked on readings · 4 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Max Depth | Access |
|---|---|---|---|---|---|---|---|
| 1 | Unl LakeCape May | 5.6 ft | 18.3 µg/L | 6.3 µg/L | No recent samples | No recent samples | ✓ Public |
| East Creek PondCape May | No recent samples | No recent samples | No recent samples | No recent samples | 6.6 ft | Not recorded | |
| Johnson PondCape May | No recent samples | No recent samples | No recent samples | No recent samples | 4.3 ft | Not recorded | |
| Ludlams PondCape May | No recent samples | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Magnolia LakeCape May | No recent samples | No recent samples | No recent samples | No recent samples | 4.3 ft | Not recorded |
NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.
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Source: the New Jersey Department of Environmental Protection. See data sources.