Riverine Flood Risk in New Mexico
All New Mexico counties ranked by FEMA National Risk Index riverine flood score
Riverine Flood risk — rivers and streams overflowing their banks after heavy rain or snowmelt — is rated for 33 of 33 New Mexico counties in FEMA's National Risk Index. Doña Ana County carries the state's highest riverine flood score at 98.4, with $133M in expected annual riverine flood losses.
2 New Mexico counties are rated High or Very High for riverine flood, and expected annual losses from riverine flood total roughly $641M statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Riverine Flood
| # | County | Riverine Flood Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Doña Ana County | High | 2.54 / yr | $133M | |
| 2 | Bernalillo County | High | 2.14 / yr | $93M | |
| 3 | San Juan County | Medium | 1.36 / yr | $31M | |
| 4 | Chaves County | Medium | 1.50 / yr | $37M | |
| 5 | Eddy County | Medium | 4.57 / yr | $36M | |
| 6 | Valencia County | Medium | 0.61 / yr | $30M | |
| 7 | Otero County | Medium | 1.96 / yr | $27M | |
| 8 | Santa Fe County | Medium | 2.61 / yr | $27M | |
| 9 | Rio Arriba County | Medium | 1.18 / yr | $20M | |
| 10 | Lea County | Medium | 2.39 / yr | $25M | |
| 11 | McKinley County | Medium | 1.43 / yr | $15M | |
| 12 | Sandoval County | Medium | 2.36 / yr | $21M | |
| 13 | Roosevelt County | Medium | 1.14 / yr | $20M | |
| 14 | Grant County | Medium | 2.00 / yr | $15M | |
| 15 | San Miguel County | Medium | 1.64 / yr | $14M | |
| 16 | Taos County | Medium | 0.43 / yr | $14M | |
| 17 | Lincoln County | Medium | 2.32 / yr | $12M | |
| 18 | Socorro County | Medium | 1.39 / yr | $9M | |
| 19 | Sierra County | Medium | 1.86 / yr | $9M | |
| 20 | Cibola County | Medium | 0.93 / yr | $9M | |
| 21 | Torrance County | Low | 0.71 / yr | $6M | |
| 22 | Colfax County | Low | 1.21 / yr | $5M | |
| 23 | Luna County | Low | 1.14 / yr | $5M | |
| 24 | Curry County | Low | 0.79 / yr | $7M | |
| 25 | Mora County | Low | 1.07 / yr | $4M | |
| 26 | Catron County | Low | 1.14 / yr | $3M | |
| 27 | Quay County | Low | 0.68 / yr | $3M | |
| 28 | Guadalupe County | Very Low | 0.64 / yr | $2M | |
| 29 | Hidalgo County | Very Low | 0.25 / yr | $1M | |
| 30 | De Baca County | Very Low | 0.54 / yr | $1M | |
| 31 | Los Alamos County | Very Low | 0.39 / yr | $3M | |
| 32 | Union County | Very Low | 0.96 / yr | $666K | |
| 33 | Harding County | Very Low | 0.14 / yr | $390K |
33 New Mexico counties with measurable riverine flood risk. See the national riverine flood ranking or all New Mexico counties by overall risk.
Frequently Asked Questions
Which New Mexico county has the highest riverine flood risk?
Doña Ana County has the highest FEMA riverine flood risk score in New Mexico at 98.4 (High), with $133M in expected annual losses and about 2.54 events per year.
How many New Mexico counties face significant riverine flood risk?
33 New Mexico counties record measurable riverine flood risk in FEMA's National Risk Index; 2 of them are rated High or Very High.