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Louisiana landslide risk

64 counties scored 0 rated Very High

Caddo Parish has the highest landslide risk in Louisiana, scoring 64 out of 100 — rated "Relatively Low" by FEMA's National Risk Index.

# County NRI score Rating NOAA events
2016–2026
1 Caddo Parish 64 Relatively Low 0
2 Natchitoches Parish 62.8 Relatively Low 0
3 Ouachita Parish 62.7 Relatively Low 0
4 Sabine Parish 61.6 Very Low 0
5 Union Parish 60.8 Very Low 0
6 Rapides Parish 60.3 Very Low 0
7 East Baton Rouge Parish 59.7 Very Low 0
8 Lincoln Parish 57.1 Very Low 0
9 West Feliciana Parish 48.5 Very Low 0
10 Claiborne Parish 46 Very Low 0
11 Bossier Parish 43.8 Very Low 0
12 Vernon Parish 43.7 Very Low 0
13 Webster Parish 41.1 Very Low 0
14 Washington Parish 39.7 Very Low 0
15 Catahoula Parish 38.9 Very Low 0
16 St. Tammany Parish 37.9 Very Low 0
17 Bienville Parish 36.8 Very Low 0
18 Calcasieu Parish 35.8 Very Low 0
19 St. Landry Parish 33.8 Very Low 0
20 Winn Parish 31.6 Very Low 0
21 Tangipahoa Parish 30.8 Very Low 0
22 Jackson Parish 30.7 Very Low 0
23 De Soto Parish 29.9 Very Low 0
24 Avoyelles Parish 29.8 Very Low 0
25 Grant Parish 28.2 Very Low 0
26 Jefferson Parish 28.1 Very Low 0
27 LaSalle Parish 27.1 Very Low 0
28 Pointe Coupee Parish 27 Very Low 0
29 Morehouse Parish 26.7 Very Low 0
30 St. Martin Parish 25.5 Very Low 0
31 Lafourche Parish 24.9 Very Low 0
32 Livingston Parish 24.7 Very Low 0
33 Caldwell Parish 24.6 Very Low 0
34 East Feliciana Parish 24 Very Low 0
35 Concordia Parish 23.3 Very Low 0
36 Lafayette Parish 23.2 Very Low 0
37 Terrebonne Parish 22.8 Very Low 0
38 Ascension Parish 22 Very Low 0
39 Iberville Parish 20.4 Very Low 0
40 Orleans Parish 18.4 Very Low 0
41 Tensas Parish 18.3 Very Low 0
42 Madison Parish 17.6 Very Low 0
43 Richland Parish 17.1 Very Low 0
44 St. Mary Parish 17.1 Very Low 0
45 Iberia Parish 16.2 Very Low 0
46 Plaquemines Parish 15.6 Very Low 0
47 East Carroll Parish 15 Very Low 0
48 Assumption Parish 14.4 Very Low 0
49 Franklin Parish 14.1 Very Low 0
50 Acadia Parish 13.8 Very Low 0
51 Evangeline Parish 13.6 Very Low 0
52 Beauregard Parish 13.2 Very Low 0
53 St. Helena Parish 11.9 Very Low 0
54 St. Charles Parish 11.7 Very Low 0
55 Vermilion Parish 11.6 Very Low 0
56 Red River Parish 9.5 Very Low 0
57 St. James Parish 9.3 Very Low 0
58 St. Bernard Parish 8.3 Very Low 0
59 West Baton Rouge Parish 7.9 Very Low 0
60 Allen Parish 7.6 Very Low 0
61 West Carroll Parish 7.3 Very Low 0
62 Jefferson Davis Parish 6.8 Very Low 0
63 St. John the Baptist Parish 6.6 Very Low 0
64 Cameron Parish 3.7 Very Low 0

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.

Landslide risk nationally:

Top 50 US counties

Other hazard risks in Louisiana:

WildfireInland FloodingCoastal FloodingEarthquakeHeat WaveTornadoHurricaneHailStrong WindWinter WeatherIce StormCold WaveLightningDroughtAvalancheTsunamiVolcanic Activity

Frequently asked questions

What is the highest landslide risk county in Louisiana?

Caddo Parish, LA has the highest landslide risk in Louisiana, with a FEMA National Risk Index score of 64 out of 100 (rated "Relatively Low").

What causes landslide risk in Louisiana?

Landslide risk covers expected losses from hillslope failures, rockfalls, and debris flows triggered by heavy rainfall, snowmelt, wildfire, or earthquakes. High scores concentrate in the Pacific Northwest, California coastal ranges, Appalachians, and Rocky Mountain foothills, where steep terrain combines with intense precipitation or seismic activity.