riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

Mohave County Disaster Risk

Mohave County, Arizona

FEMA Risk Rating

Relatively High

National Percentile

95th

of 3,144 counties

State Rank

#3

of 15 (1 = highest risk)

Flood Risk

97th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively High

Higher than 97% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively High

Higher than 99% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 3% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 87% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 0% of US counties

Risk Overview

About Natural Disaster Risk in Mohave County, Arizona

Mohave's risk exceeds U.S. average

Mohave County scores 94.75 on composite risk, placing it in the relatively high category and above the national baseline. This elevated score reflects exposure to multiple hazards, particularly wildfire and earthquake threats that dominate the county's profile.

Third-riskiest county in Arizona

At 94.75, Mohave ranks third among Arizona's 15 counties for overall disaster risk, trailing only Pima (99.11) and Pinal (93.83). The county's 94.75 score significantly exceeds Arizona's 84.45 state average by 10.3 points.

Higher risk than northern peers

Mohave's 94.75 score surpasses neighboring Navajo County (88.07) and statewide peers Santa Cruz (88.33) and Yavapai (93.73). Only Pima and Pinal counties carry comparable overall risk levels in Arizona.

Wildfire and earthquake dominate

Wildfire risk reaches 98.82 in Mohave—nearly the highest in the state—with earthquake risk at a substantial 87.05. Flood risk also poses significant concern at 97.07, while tornado risk remains minimal at 3.34.

Ensure wildfire and quake coverage

Standard homeowners policies typically exclude earthquake and may not cover wildfire damage; Mohave residents should verify coverage for both hazards. Consider a separate earthquake policy and review wildfire protections given the county's 98.82 wildfire score.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Mohave County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    99th percentile
  2. #2
    FloodPrepare
    97th percentile
  3. #3
    EarthquakePrepare
    87th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Mohave County

Risk Verdict

Mohave County's composite risk score ranks at the 95th percentile nationally, reflecting genuine multi-hazard exposure for residents. At this risk level, having a documented household preparedness plan — not just awareness — is the meaningful next step for Mohave County residents.

Hazard Breakdown

Wildfire risk is Mohave County's dominant natural hazard, ranked at the 99th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 97th percentile nationally. Additional tracked hazards include earthquake (87th percentile), tornado (3th percentile), hurricane (0th percentile).

Preparedness Context

Mohave County sits at the 99th percentile for wildfire exposure. Signing up for Mohave County's county emergency alert system and knowing the pre-planned evacuation route before conditions deteriorate are the two highest-value preparedness actions for residents here. The county's flood exposure at the 97th percentile nationally complements the wildfire risk — saturating rain after burn scarring often triggers secondary flood and debris flow events. In Mohave County, wildfire smoke often precedes the flame front by hours or days; households benefit from tracking EPA's AirNow.gov and having HEPA air filtration available as a first line of indoor protection when air quality alerts are issued.

Regional Context

The Arizona county average is 10.3 composite points below Mohave County's score, a gap that reflects the county's elevated position in the state's hazard distribution.

Is your household prepared for Mohave County's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in Mohave County, AZ?
Mohave County has a FEMA National Risk Index rating of Relatively High, placing it in the 95th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.
What types of natural hazards affect Mohave County?
Mohave County is evaluated for five major natural hazard types: wildfire (99th percentile), flooding (97th percentile), earthquake (87th percentile), tornado (3th percentile), hurricane (0th percentile). The highest-risk hazard is wildfire at the 99th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.
How does Mohave County risk compare to the Arizona average?
Mohave County's composite risk percentile is 95th, compared to the Arizona state average of 85th percentile. The state's overall risk rating is Relatively Moderate. This means Mohave County faces higher natural disaster risk than the typical county in Arizona.
Is Mohave County at risk for wildfire?
Yes, Mohave County's wildfire risk is at the 99th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Mohave County is at the 97th percentile.
How is natural disaster risk measured?
FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.
Why is Mohave County higher risk than average?
Mohave County's composite risk score of 95th percentile is above the Arizona state average of 85th percentile. This elevated risk is driven by wildfire exposure (99th percentile), along with flooding and earthquake risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

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.