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

Inyo County Disaster Risk

Inyo County, California

FEMA Risk Rating

Relatively Low

National Percentile

79th

of 3,144 counties

State Rank

#51

of 58 (1 = highest risk)

Flood Risk

62th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 62% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Moderate

Higher than 84% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 3% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively High

Higher than 94% of US counties

Risk Overview

About Natural Disaster Risk in Inyo County, California

Inyo County maintains relatively low risk

Inyo County's composite risk score of 79.33 places it in the 'Relatively Low' category, below the national average. Despite its mountainous terrain and high elevation, the county experiences lower overall natural disaster exposure than most California peers. This favorable rating reflects particularly low tornado and flood risks in the Eastern Sierra setting.

Inyo ranks among California's safer counties

Inyo's 79.33 score falls well below California's 88.72 average, positioning it in the lower quartile of the state's 58 counties. The county represents one of California's least hazard-exposed areas, offering a genuine advantage for disaster preparedness planning. This favorable ranking reflects the Eastern Sierra's relatively lower multi-hazard exposure profile.

Inyo safest among inland and valley peers

Inyo's 79.33 score ranks well below all major neighbors including Kern (98.89), Fresno (99.30), Kings (92.43), and Imperial (96.47) counties. The county's earthquake risk of 94.31 remains elevated despite the favorable composite score, but flood risk of 61.61 provides substantial comparative advantage. Among regional peers, Inyo represents a notably safer natural disaster environment.

Earthquake and wildfire pose primary threats

Inyo's earthquake risk reaches 94.31, while wildfire risk scores 83.68—the county's two major hazards and well above its flood (61.61) and tornado (2.86) risks. Mountain terrain and seasonal fire activity drive wildfire exposure, while the county's location near the Sierra Nevada fault system creates earthquake risk. These two hazards should dominate disaster preparedness planning.

Focus on earthquake and wildfire coverage

Inyo residents should prioritize earthquake insurance given the 94.31 risk score, plus wildfire coverage appropriate to their specific location and terrain. Standard flood insurance may be optional for most locations, given the county's lower flood risk relative to California peers. Annual coverage reviews ensure your protection matches Inyo's specific earthquake and wildfire hazards.

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

Preparedness Guide

What to Prepare for in Inyo County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    94th percentile
  2. #2
    WildfirePrepare
    84th percentile
  3. #3
    FloodPrepare
    62th percentile

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

Risk Advisory: Inyo County

Risk Verdict

Inyo County has a below-average natural disaster risk profile, scoring at the 79th percentile nationally under FEMA's National Risk Index. This risk level calls for more than general awareness: insurance coverage review, a family communication plan, and a prepared go-bag are practical priorities.

Hazard Breakdown

Earthquake risk is Inyo County's dominant natural hazard, ranked at the 94th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 84th percentile nationally. Additional tracked hazards include flood (62th percentile), tornado (3th percentile).

Preparedness Context

Earthquake risk is Inyo County's leading natural hazard, ranked at the 94th percentile nationally. Securing tall furniture, water heaters, and bookcases to walls with anti-tip hardware is among the simplest and most effective life-safety measures households can take. Alongside earthquake exposure, Inyo County's wildfire risk at the 84th percentile nationally reinforces the value of maintaining a household emergency supply cache usable for multiple hazard scenarios. Inyo County residents should locate the main gas shutoff valve and keep an appropriate wrench nearby — gas leaks cause a significant share of earthquake-related injuries and fires, and the shutoff step is safe to take immediately after shaking stops.

Regional Context

The California county average exceeds Inyo County's score by 9.4 composite points — placing this county in the lower-risk tier relative to its in-state peers.

Is your household prepared for Inyo 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 Inyo County, CA?
Inyo County has a FEMA National Risk Index rating of Relatively Low, placing it in the 79th 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 Inyo County?
Inyo County is evaluated for five major natural hazard types: earthquake (94th percentile), wildfire (84th percentile), flooding (62th percentile), tornado (3th percentile). The highest-risk hazard is earthquake at the 94th 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 Inyo County risk compare to the California average?
Inyo County's composite risk percentile is 79th, compared to the California state average of 89th percentile. The state's overall risk rating is Relatively Moderate. This means Inyo County faces lower natural disaster risk than the typical county in California.
Is Inyo County at risk for earthquake?
Yes, Inyo County's earthquake risk is at the 94th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Inyo County is at the 62th 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.
Is Inyo County a safe place to live?
Inyo County's composite risk score of 79th percentile is below the California state average of 89th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is earthquake at the 94th percentile. Residents should still maintain emergency preparedness plans and appropriate insurance coverage.
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.