Coastal Flood Risk by State & County

Ranked by FEMA National Risk Index coastal flood hazard score · code CFLD

Coastal Flood risk reflects seawater inundation from storm surge, high tides, and rising sea levels. FEMA's National Risk Index scores each county's coastal flood hazard from its expected annual loss, annualized event frequency, and exposed population. Bergen County, New Jersey currently leads the nation with a coastal flood score of 100.0 and $34M in expected annual loss. Florida, New Jersey, New York account for much of the highest-rated coastal flood risk in this dataset.

Read the full coastal flood risk guide — how FEMA scores it and how to prepare →

Coastal Flood Risk by State

#StateExpected Ann. LossAvg. ScoreRatingCounties Rated
1Florida$201M
47.8
Medium 67 of 67
2New Jersey$146M
63.6
High 21 of 21
3Louisiana$74M
31.4
Low 64 of 64
4New York$70M
19.6
Very Low 62 of 62
5California$67M
24.5
Low 58 of 58
6Massachusetts$61M
50.9
Medium 14 of 14
7South Carolina$57M
15.4
Very Low 46 of 46
8Washington$47M
30.3
Low 39 of 39
9North Carolina$33M
15.3
Very Low 100 of 100
10Virginia$32M
17.8
Very Low 133 of 133
11Connecticut$31M
56.6
Medium 9 of 9
12Maryland$28M
48.4
Medium 24 of 24
13Georgia$21M
3.4
Very Low 159 of 159
14Delaware$19M
83.7
Very High 3 of 3
15Oregon$19M
16.7
Very Low 36 of 36
16Texas$17M
4.5
Very Low 254 of 254
17Maine$17M
42.8
Medium 16 of 16
18Mississippi$12M
3.8
Very Low 82 of 82
19New Hampshire$12M
13.7
Very Low 10 of 10
20Alabama$10M
3.6
Very Low 67 of 67
21Rhode Island$5M
63.9
High 5 of 5
22Pennsylvania$4M
3.7
Very Low 67 of 67
23Hawaii$2M
49.7
Medium 5 of 5
24District of Columbia$2M
74.0
High 1 of 1
25Michigan$561K
15.3
Very Low 83 of 83
26Ohio$214K
3.6
Very Low 88 of 88
27Wisconsin$145K
6.1
Very Low 72 of 72
28Illinois$42K
0.7
Very Low 102 of 102
29Alaska$36K
6.8
Very Low 30 of 30
30Indiana$28K
1.1
Very Low 92 of 92
31Minnesota$9K
0.7
Very Low 87 of 87
32Arizona$0
0.0
Very Low 15 of 15
33New Mexico$0
0.0
Very Low 33 of 33
34Oklahoma$0
0.0
Very Low 77 of 77
35Arkansas$0
0.0
Very Low 75 of 75
36Tennessee$0
0.0
Very Low 95 of 95
37Missouri$0
0.0
Very Low 115 of 115
38West Virginia$0
0.0
Very Low 55 of 55
39Nevada$0
0.0
Very Low 17 of 17
40Kentucky$0
0.0
Very Low 120 of 120
41Colorado$0
0.0
Very Low 64 of 64
42Iowa$0
0.0
Very Low 99 of 99
43Idaho$0
0.0
Very Low 44 of 44
44Wyoming$0
0.0
Very Low 23 of 23
45Vermont$0
0.0
Very Low 14 of 14
46Utah$0
0.0
Very Low 29 of 29
47Montana$0
0.0
Very Low 56 of 56
48Kansas$0
0.0
Very Low 105 of 105
49South Dakota$0
0.0
Very Low 66 of 66
50Nebraska$0
0.0
Very Low 93 of 93
51North Dakota$0
0.0
Very Low 53 of 53

States ranked by total expected annual coastal flood losses; the average score is the mean over all counties, counting unrated counties as zero.

Riskiest Counties for Coastal Flood

#CountyStateCoastal Flood ScoreRatingAnn. Freq.Ann. Loss
1Bergen CountyNJ
100.0
Very High 3.76 / yr$34M
2Charleston CountySC
99.8
Very High 3.65 / yr$36M
3Miami-Dade CountyFL
99.6
Very High 2.25 / yr$23M
4Cape May CountyNJ
99.4
Very High 3.68 / yr$31M
5Pinellas CountyFL
99.2
Very High 3.69 / yr$25M
6Grays Harbor CountyWA
99.0
Very High 10.13 / yr$24M
7Monroe CountyFL
98.8
Very High 2.28 / yr$21M
8Suffolk CountyNY
98.6
Very High 3.79 / yr$25M
9Nassau CountyNY
98.4
Very High 3.83 / yr$24M
10Ocean CountyNJ
98.2
Very High 3.65 / yr$19M
11Manatee CountyFL
98.0
Very High 3.69 / yr$17M
12Essex CountyMA
97.8
Very High 8.13 / yr$19M
13Sussex CountyDE
97.6
Very High 3.65 / yr$14M
14Lee CountyFL
97.4
Very High 2.92 / yr$14M
15Marin CountyCA
97.2
Very High 1.62 / yr$20M
16Broward CountyFL
97.0
Very High 2.62 / yr$14M
17Accomack CountyVA
96.8
Very High 3.69 / yr$11M
18Queens CountyNY
96.6
Very High 4.36 / yr$9M
19Clatsop CountyOR
96.4
Very High 4.44 / yr$12M
20Atlantic CountyNJ
96.2
Very High 3.67 / yr$14M
21Chatham CountyGA
96.0
Very High 3.67 / yr$13M
22Salem CountyNJ
95.8
Very High 3.69 / yr$14M
23Jefferson ParishLA
95.6
Very High 2.80 / yr$11M
24St. Charles ParishLA
95.4
Very High 3.76 / yr$13M
25Collier CountyFL
95.2
Very High 3.30 / yr$9M

Showing the top 25 seeded counties for coastal flood risk.