Flood Risk by County in Arizona

Arizona: 15 counties covered

Across 15 Arizona counties with a FEMA flood score, the average national percentile is 87.3, but that average hides real spread between counties, which is why each one gets its own page rather than a single statewide number.

• Maricopa County, 99.9th percentile, Very High
• Pima County, 99.5th percentile, Very High
• Pinal County, 96.4th percentile, Relatively High
• Yavapai County, 96.1th percentile, Relatively High
• Mohave County, 97.1th percentile, Relatively High
• Yuma County, 91th percentile, Relatively Moderate
• Coconino County, 96.5th percentile, Relatively High
• Cochise County, 93.8th percentile, Relatively High
• Navajo County, 89.5th percentile, Relatively Moderate
• Apache County, 80.7th percentile, Relatively Moderate
• Gila County, 93.1th percentile, Relatively Moderate
• Santa Cruz County, 87.4th percentile, Relatively Moderate
• Graham County, 67.9th percentile, Relatively Low
• La Paz County, 91.5th percentile, Relatively Moderate
• Greenlee County, 29.6th percentile, Very Low