Arizona

Comprehensive climate risk and disaster history profile

Billion-Dollar Events

$109.0B

Total Economic Impact

Counties

76.84

Avg Risk Score

Top Natural Hazards

Based on FEMA National Risk Index data across all 15 counties

Wildfire

90.59 Avg Risk Score

Earthquake

82.45 Avg Risk Score

Drought

79.46 Avg Risk Score

Landslide

77.69 Avg Risk Score

Riverine Flooding

76.4 Avg Risk Score

Lightning

74.02 Avg Risk Score

Heat Wave

71.08 Avg Risk Score

Ice Storm

54.5 Avg Risk Score

Historical billion-dollar events by category (1980-2024)

wildfire 7 events

$19.4B

drought 7 events

$84.3B

flooding 1 events

$1.5B

severe-storm 1 events

$3.8B

How disaster frequency and costs have changed over time

Counties with the highest overall risk scores based on FEMA NRI

Rank	County	Risk Score	Risk Rating	SVI Percentile
1	Maricopa	97.33	Relatively High	71.3%
2	Pima	94.97	Relatively Moderate	88.8%
3	Pinal	93.13	Relatively Moderate	79.7%
4	Yuma	91.66	Relatively Moderate	99.8%
5	Coconino	90.23	Relatively Moderate	80.3%
6	Yavapai	88.83	Relatively Moderate	59.9%
7	Mohave	88.42	Relatively Moderate	84.9%
8	Cochise	85.87	Relatively Moderate	93.2%
9	Gila	85.27	Relatively Moderate	84.7%
10	Navajo	80.94	Relatively Low	98.1%