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Editorial

Most disaster-prone counties in Arizona

Arizona has 250 county-level FEMA disaster declarations across 15 counties. The dominant hazard type is flood. Maricopa County leads with 26 declarations, followed by Yavapai County and Coconino County.

This ranking shows every county in Arizona ordered by how many times FEMA has issued a disaster declaration affecting it. Counties near coastlines, river systems, or wildfire corridors tend to appear at the top because the same geographic exposure produces recurring events across decades.

Each county links to a full disaster history page with the complete declaration timeline, hazard type breakdown, decade trends, and whatever FEMA spending data is available. For a national view, see the most disaster-prone counties in America page.

Arizona ranking

All counties by FEMA declaration count

#CountyDeclarationsTop hazardFirst yearLatest year
1Maricopa County26Fire19662024
2Yavapai County26Fire19772022
3Coconino County24Fire19702022
4Gila County23Fire19702021
5Pinal County23Fire19662025
6Navajo County21Flood19702021
7Apache County16Flood19702025
8Mohave County15Flood19772020
9Pima County15Flood19662020
10Cochise County14Fire19702020
11Graham County13Flood19662020
12Greenlee County13Flood19662020
13Santa Cruz County8Flood19772020
14La Paz County7Biological19832020
15Yuma County6Biological19832020