New Mexico inland flooding risk
Doña Ana County has the highest inland flooding risk in New Mexico, scoring 98.4 out of 100 — rated "Relatively High" by FEMA's National Risk Index. Recorded inland flooding events across New Mexico have increased 114% over the past five years compared to the prior five-year period.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Doña Ana County | 98.4 | Relatively High | 34 |
| 2 | Bernalillo County | 96.3 | Relatively High | 31 |
| 3 | San Juan County | 92.4 | Relatively Moderate | 22 |
| 4 | Chaves County | 92.3 | Relatively Moderate | 39 |
| 5 | Eddy County | 90.7 | Relatively Moderate | 58 |
| 6 | Valencia County | 89.6 | Relatively Moderate | 10 |
| 7 | Otero County | 88.6 | Relatively Moderate | 29 |
| 8 | Rio Arriba County | 88.4 | Relatively Moderate | 16 |
| 9 | Santa Fe County | 88.4 | Relatively Moderate | 32 |
| 10 | Lea County | 88.3 | Relatively Moderate | 14 |
| 11 | McKinley County | 86.8 | Relatively Moderate | 22 |
| 12 | Sandoval County | 84.3 | Relatively Moderate | 32 |
| 13 | Grant County | 83.7 | Relatively Moderate | 15 |
| 14 | Roosevelt County | 83.7 | Relatively Moderate | 15 |
| 15 | San Miguel County | 83.4 | Relatively Moderate | 48 |
| 16 | Taos County | 81.7 | Relatively Moderate | 8 |
| 17 | Lincoln County | 77.6 | Relatively Moderate | 81 |
| 18 | Socorro County | 76.2 | Relatively Moderate | 24 |
| 19 | Sierra County | 74.3 | Relatively Moderate | 17 |
| 20 | Cibola County | 73.4 | Relatively Moderate | 12 |
| 21 | Torrance County | 62.8 | Relatively Low | 12 |
| 22 | Colfax County | 58.6 | Relatively Low | 21 |
| 23 | Luna County | 57.5 | Relatively Low | 9 |
| 24 | Curry County | 52.5 | Relatively Low | 18 |
| 25 | Mora County | 50.7 | Relatively Low | 40 |
| 26 | Catron County | 41.1 | Relatively Low | 7 |
| 27 | Quay County | 38.5 | Relatively Low | 7 |
| 28 | Guadalupe County | 29.9 | Very Low | 7 |
| 29 | Hidalgo County | 14.9 | Very Low | 2 |
| 30 | De Baca County | 11.5 | Very Low | 12 |
| 31 | Los Alamos County | 11.1 | Very Low | 0 |
| 32 | Union County | 7.1 | Very Low | 11 |
| 33 | Harding County | 2.8 | Very Low | 4 |
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.
Inland Flooding risk nationally:
Other hazard risks in New Mexico:
Frequently asked questions
What is the highest inland flooding risk county in New Mexico?
Doña Ana County, NM has the highest inland flooding risk in New Mexico, with a FEMA National Risk Index score of 98.4 out of 100 (rated "Relatively High").
What causes inland flooding risk in New Mexico?
Inland flooding covers riverine and surface (pluvial) flooding — the most common and costly natural disaster type in the US. High scores appear across river floodplains in the Midwest, South, and Mid-Atlantic, where legacy development in flood-prone areas and aging stormwater infrastructure concentrate risk.