Landslide Risk in Arizona
All Arizona counties ranked by FEMA National Risk Index landslide score
Landslide risk — downhill movement of rock, soil, and debris on unstable slopes — is rated for 15 of 15 Arizona counties in FEMA's National Risk Index. Coconino County carries the state's highest landslide score at 97.4, with $309K in expected annual landslide losses.
No Arizona county reaches the High band for landslide, and expected annual losses from landslide total roughly $475K statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Landslide
| # | County | Landslide Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Coconino County | Medium | 5.52 / yr | $309K | |
| 2 | Navajo County | Medium | 2.54 / yr | $57K | |
| 3 | Apache County | Medium | 2.50 / yr | $52K | |
| 4 | Maricopa County | Low | 2.11 / yr | $28K | |
| 5 | Gila County | Low | 4.49 / yr | $8K | |
| 6 | Yavapai County | Low | 4.41 / yr | $5K | |
| 7 | Santa Cruz County | Low | 1.05 / yr | $3K | |
| 8 | Mohave County | Low | 6.99 / yr | $3K | |
| 9 | Greenlee County | Low | 1.74 / yr | $3K | |
| 10 | Pima County | Very Low | 2.14 / yr | $2K | |
| 11 | La Paz County | Very Low | 2.55 / yr | $1K | |
| 12 | Cochise County | Very Low | 1.38 / yr | $1K | |
| 13 | Pinal County | Very Low | 1.05 / yr | $1K | |
| 14 | Yuma County | Very Low | 3.67 / yr | $762 | |
| 15 | Graham County | Very Low | 1.96 / yr | $608 |
15 Arizona counties with measurable landslide risk. See the national landslide ranking or all Arizona counties by overall risk.
Frequently Asked Questions
Which Arizona county has the highest landslide risk?
Coconino County has the highest FEMA landslide risk score in Arizona at 97.4 (Medium), with $309K in expected annual losses and about 5.52 events per year.
How many Arizona counties face significant landslide risk?
15 Arizona counties record measurable landslide risk in FEMA's National Risk Index; 0 of them are rated High or Very High.