| # | County | Expected annual loss |
|---|---|---|
| 1 | Jefferson Parish | $370.9M |
| 2 | Orleans Parish | $304.1M |
| 3 | East Baton Rouge Parish | $266.6M |
| 4 | St. Tammany Parish | $248.9M |
| 5 | Lafayette Parish | $189.8M |
| 6 | Livingston Parish | $165.6M |
| 7 | Calcasieu Parish | $163.6M |
| 8 | Terrebonne Parish | $140.7M |
| 9 | Ascension Parish | $120.1M |
| 10 | Tangipahoa Parish | $107.4M |
| 11 | Caddo Parish | $88.8M |
| 12 | Lafourche Parish | $82.7M |
| 13 | Iberia Parish | $63.8M |
| 14 | St. Mary Parish | $60.7M |
| 15 | St. Charles Parish | $56.7M |
| 16 | Acadia Parish | $50.7M |
| 17 | Ouachita Parish | $50.3M |
| 18 | St. Landry Parish | $49.9M |
| 19 | Bossier Parish | $47.5M |
| 20 | St. Martin Parish | $47.0M |
| 21 | St. John the Baptist Parish | $46.4M |
| 22 | Vermilion Parish | $44.3M |
| 23 | Rapides Parish | $39.6M |
| 24 | Washington Parish | $34.8M |
| 25 | St. Bernard Parish | $34.7M |
Source: FEMA National Risk Index (December 2025). All counties with data are ranked. Estimates carry margins of error.
Citing this page: GIS Map, “Counties with the Highest Expected Annual Loss from Natural Hazards in Louisiana”, https://gismap.land/rankings/louisiana/highest-expected-loss-counties. Figures from FEMA National Risk Index (December 2025).
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