New Mexico landslide risk
Rio Arriba County has the highest landslide risk in New Mexico, scoring 95 out of 100 — rated "Relatively Moderate" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Rio Arriba County | 95 | Relatively Moderate | 0 |
| 2 | Sandoval County | 94.1 | Relatively Moderate | 0 |
| 3 | Catron County | 93.8 | Relatively Moderate | 0 |
| 4 | San Juan County | 93 | Relatively Moderate | 0 |
| 5 | Taos County | 92.6 | Relatively Moderate | 2 |
| 6 | McKinley County | 87.3 | Relatively Moderate | 0 |
| 7 | Cibola County | 84.2 | Relatively Low | 0 |
| 8 | Lincoln County | 76.3 | Relatively Low | 12 |
| 9 | Mora County | 75.9 | Relatively Low | 2 |
| 10 | Colfax County | 75.3 | Relatively Low | 0 |
| 11 | San Miguel County | 75.1 | Relatively Low | 2 |
| 12 | Grant County | 70.9 | Relatively Low | 0 |
| 13 | Otero County | 68.8 | Relatively Low | 0 |
| 14 | Santa Fe County | 66.4 | Relatively Low | 0 |
| 15 | Los Alamos County | 66 | Relatively Low | 0 |
| 16 | Sierra County | 50.9 | Very Low | 0 |
| 17 | Bernalillo County | 43 | Very Low | 1 |
| 18 | Doña Ana County | 40.8 | Very Low | 0 |
| 19 | Socorro County | 38.5 | Very Low | 0 |
| 20 | Guadalupe County | 28.6 | Very Low | 0 |
| 21 | Chaves County | 26.8 | Very Low | 0 |
| 22 | Torrance County | 23.1 | Very Low | 0 |
| 23 | Harding County | 20.7 | Very Low | 0 |
| 24 | Union County | 19.9 | Very Low | 0 |
| 25 | Eddy County | 18 | Very Low | 0 |
| 26 | Quay County | 13.9 | Very Low | 0 |
| 27 | Hidalgo County | 10.9 | Very Low | 0 |
| 28 | Valencia County | 9.4 | Very Low | 0 |
| 29 | De Baca County | 9 | Very Low | 0 |
| 30 | Roosevelt County | 7.5 | Very Low | 0 |
| 31 | Curry County | 4 | Very Low | 0 |
| 32 | Luna County | 3.8 | Very Low | 0 |
| 33 | Lea County | 1.1 | 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:
Other hazard risks in New Mexico:
Frequently asked questions
What is the highest landslide risk county in New Mexico?
Rio Arriba County, NM has the highest landslide risk in New Mexico, with a FEMA National Risk Index score of 95 out of 100 (rated "Relatively Moderate").
What causes landslide risk in New Mexico?
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.