Utah coastal flooding risk
Davis County has the highest coastal flooding risk in Utah, scoring 0 out of 100 — rated "No Rating" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
|---|---|---|---|
| 1 | Davis County | 0 | No Rating |
| 2 | Salt Lake County | 0 | No Rating |
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 Utah:
Frequently asked questions
What is the highest coastal flooding risk county in Utah?
Davis County, UT has the highest coastal flooding risk in Utah, with a FEMA National Risk Index score of 0 out of 100 (rated "No Rating").
What causes coastal flooding risk in Utah?
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.