Coastal Flood Risk in Florida
All Florida counties ranked by FEMA National Risk Index coastal flood score
Coastal Flood risk — seawater inundation from storm surge, high tides, and rising sea levels — is rated for 47 of 67 Florida counties in FEMA's National Risk Index. Miami-Dade County carries the state's highest coastal flood score at 99.6, with $23M in expected annual coastal flood losses.
16 Florida counties are rated High or Very High for coastal flood, and expected annual losses from coastal flood total roughly $201M statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Coastal Flood
| # | County | Coastal Flood Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Miami-Dade County | Very High | 2.25 / yr | $23M | |
| 2 | Pinellas County | Very High | 3.69 / yr | $25M | |
| 3 | Monroe County | Very High | 2.28 / yr | $21M | |
| 4 | Manatee County | Very High | 3.69 / yr | $17M | |
| 5 | Lee County | Very High | 2.92 / yr | $14M | |
| 6 | Broward County | Very High | 2.62 / yr | $14M | |
| 7 | Collier County | Very High | 3.30 / yr | $9M | |
| 8 | Sarasota County | High | 3.65 / yr | $7M | |
| 9 | Palm Beach County | High | 2.91 / yr | $8M | |
| 10 | Citrus County | High | 3.67 / yr | $5M | |
| 11 | Hillsborough County | High | 3.69 / yr | $8M | |
| 12 | Duval County | High | 2.78 / yr | $7M | |
| 13 | Pasco County | High | 3.69 / yr | $6M | |
| 14 | Charlotte County | High | 3.22 / yr | $4M | |
| 15 | St. Johns County | High | 2.92 / yr | $8M | |
| 16 | Volusia County | High | 2.06 / yr | $3M | |
| 17 | Brevard County | Medium | 1.05 / yr | $3M | |
| 18 | Franklin County | Medium | 3.91 / yr | $1M | |
| 19 | Bay County | Medium | 3.76 / yr | $2M | |
| 20 | Escambia County | Medium | 3.64 / yr | $2M | |
| 21 | Taylor County | Medium | 3.75 / yr | $1M | |
| 22 | Nassau County | Medium | 3.51 / yr | $2M | |
| 23 | Hernando County | Medium | 3.69 / yr | $1M | |
| 24 | Dixie County | Medium | 3.72 / yr | $1M | |
| 25 | Martin County | Medium | 1.13 / yr | $1M | |
| 26 | Levy County | Medium | 3.75 / yr | $792K | |
| 27 | Santa Rosa County | Medium | 3.76 / yr | $1M | |
| 28 | Indian River County | Medium | 1.02 / yr | $835K | |
| 29 | Flagler County | Medium | 1.36 / yr | $790K | |
| 30 | St. Lucie County | Medium | 1.11 / yr | $703K | |
| 31 | Okaloosa County | Medium | 1.95 / yr | $730K | |
| 32 | Walton County | Medium | 2.06 / yr | $605K | |
| 33 | Gulf County | Medium | 3.76 / yr | $517K | |
| 34 | Wakulla County | Medium | 4.54 / yr | $767K | |
| 35 | Putnam County | Low | 0.81 / yr | $365K | |
| 36 | Clay County | Low | 0.90 / yr | $464K | |
| 37 | Jefferson County | Very Low | 3.76 / yr | $9K | |
| 38 | Lake County | Very Low | 0.98 / yr | $8K | |
| 39 | DeSoto County | Very Low | 0.01 / yr | $4K | |
| 40 | Liberty County | Very Low | 0.01 / yr | $3K | |
| 41 | Gilchrist County | Very Low | 0.01 / yr | $2K | |
| 42 | Hendry County | Very Low | 0.01 / yr | $1K | |
| 43 | Marion County | Very Low | 0.98 / yr | $1K | |
| 44 | Leon County | Very Low | 0.01 / yr | $1K | |
| 45 | Washington County | Very Low | 0.01 / yr | $707 | |
| 46 | Lafayette County | Very Low | 0.01 / yr | $684 | |
| 47 | Calhoun County | Very Low | 0.01 / yr | $388 |
47 Florida counties with measurable coastal flood risk. See the national coastal flood ranking or all Florida counties by overall risk.
Frequently Asked Questions
Which Florida county has the highest coastal flood risk?
Miami-Dade County has the highest FEMA coastal flood risk score in Florida at 99.6 (Very High), with $23M in expected annual losses and about 2.25 events per year.
How many Florida counties face significant coastal flood risk?
47 Florida counties record measurable coastal flood risk in FEMA's National Risk Index; 16 of them are rated High or Very High.