Arizona Disaster Risk
Natural disaster risk data for all 15 counties.
Avg FEMA Rating
Relatively Moderate
Avg Percentile
85th
Counties with Data
15
of 15 total
Highest Risk Counties
All Arizona Counties
| County | Percentile |
|---|---|
| Maricopa County | 100th |
| Pima County | 99th |
| Mohave County | 95th |
| Coconino County | 94th |
| Pinal County | 94th |
| Yavapai County | 94th |
| Cochise County | 93th |
| Yuma County | 93th |
| Gila County | 90th |
| Santa Cruz County | 88th |
| Navajo County | 88th |
| La Paz County | 84th |
| Apache County | 79th |
| Graham County | 65th |
| Greenlee County | 12th |
Frequently Asked Questions
Which county in Arizona has the highest natural disaster risk?
Maricopa County has the highest natural disaster risk in Arizona, rated Very High (100th percentile nationally), based on FEMA National Risk Index data.
Which county in Arizona is the safest from natural disasters?
Greenlee County has the lowest natural disaster risk in Arizona, rated Very Low (12th percentile nationally), based on FEMA NRI data.
What natural disasters are most common in Arizona?
Arizona counties face varying levels of risk from floods, wildfires, tornadoes, earthquakes, and hurricanes. The FEMA National Risk Index scores each county across 18 hazard types. See individual county pages for detailed hazard breakdowns.
How is natural disaster risk measured by county?
The FEMA National Risk Index (NRI) measures natural disaster risk using expected annual loss, social vulnerability, and community resilience. Scores are normalized nationally, with ratings from Very Low to Very High across 18 natural hazard types.
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Data Source
Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.
Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.