Rhode Island coastal flooding risk
Washington County has the highest coastal flooding risk in Rhode Island, scoring 76.2 out of 100 — rated "Relatively Moderate" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
|---|---|---|---|
| 1 | Washington County | 76.2 | Relatively Moderate |
| 2 | Bristol County | 65.8 | Relatively Moderate |
| 3 | Newport County | 61.4 | Relatively Moderate |
| 4 | Kent County | 59.6 | Relatively Low |
| 5 | Providence County | 56.4 | Relatively 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 Rhode Island:
Frequently asked questions
What is the highest coastal flooding risk county in Rhode Island?
Washington County, RI has the highest coastal flooding risk in Rhode Island, with a FEMA National Risk Index score of 76.2 out of 100 (rated "Relatively Moderate").
What causes coastal flooding risk in Rhode Island?
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.