New Jersey coastal flooding risk
Bergen County has the highest coastal flooding risk in New Jersey, scoring 100 out of 100 — rated "Very High" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
|---|---|---|---|
| 1 | Bergen County | 100 | Very High |
| 2 | Cape May County | 99.4 | Very High |
| 3 | Ocean County | 98.2 | Very High |
| 4 | Atlantic County | 96.2 | Very High |
| 5 | Salem County | 95.8 | Very High |
| 6 | Hudson County | 95 | Very High |
| 7 | Monmouth County | 90.2 | Relatively High |
| 8 | Cumberland County | 88.4 | Relatively High |
| 9 | Gloucester County | 84.2 | Relatively High |
| 10 | Middlesex County | 83.6 | Relatively High |
| 11 | Burlington County | 79 | Relatively Moderate |
| 12 | Camden County | 76 | Relatively Moderate |
| 13 | Union County | 72.4 | Relatively Moderate |
| 14 | Essex County | 65.4 | Relatively Moderate |
| 15 | Mercer County | 56.8 | Relatively Low |
| 16 | Somerset County | 29.4 | Very Low |
| 17 | Passaic County | 25.4 | Very Low |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Coastal Flooding risk nationally:
Other hazard risks in New Jersey:
Frequently asked questions
What is the highest coastal flooding risk county in New Jersey?
Bergen County, NJ has the highest coastal flooding risk in New Jersey, with a FEMA National Risk Index score of 100 out of 100 (rated "Very High").
How many counties in New Jersey are rated Very High for coastal flooding risk?
6 of 17 scored New Jersey counties are rated "Very High" for coastal flooding risk by FEMA's National Risk Index.
What causes coastal flooding risk in New Jersey?
Coastal flooding scores cover storm surge, wave action, and tidal flooding along the Gulf, Atlantic, and Pacific coasts, and Great Lakes shoreline. Inland flooding is scored separately. Counties with "Not Applicable" ratings have no significant coastal exposure. Coastal flood events are reported at zone level in NOAA Storm Events and are not included in county-level counts.