Keansburg Borough, Monmouth County
Clean water with minimal concerns
Very low bacteria levels - excellent water quality
Chart shows geometric mean bacteria levels (CFU/100mL) by year. The EPA Beach Action Value is 104 CFU/100mL.
| Year | Geomean | Advisories | Closures |
|---|---|---|---|
| 2025 | 13 CFU | 1 | 0 |
| 2024 | 17 CFU | 1 | 0 |
| 2023 | 13 CFU | 2 | 0 |
| 2022 | 8 CFU | 0 | 0 |
| 2021 | No data | 0 | 0 |
| 5-Year Avg | 13 CFU | 4 | 0 |
1 advisory this year. Avoid after heavy rain.
2025 Advisories
1
5-Year Total
4
No closures in the past 5 years
Tip: Wait 24-48 hours after heavy rainfall before swimming. Bacteria levels typically return to normal within this timeframe.
Book Your Stay
July 4th weekend availability limited
Keansburg Borough fills up months in advance
★4.7+ avg rating • Free cancellation
Data provided by the New Jersey Department of Environmental Protection (NJDEP) Cooperative Coastal Monitoring Program (CCMP). Learn more →