riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Hawaii County Disaster Risk

Hawaii County, Hawaii

FEMA Risk Rating

Relatively High

NRI score (0–100 relative scale)

98.5

FEMA composite county value

State Rank

#2

of 5, sorted high to low by RiskByCounty

Flood NRI score

98.9

higher coastal/inland value

Hazard Risk Breakdown

Five selected hazard categories out of FEMA's 18. Values are FEMA NRI v1.20 scores on a 0–100 relative scale.

Earthquake

99.1 / 100

Flood

98.9 / 100

Higher of FEMA Coastal Flooding (50.8) and Inland Flooding (98.9) NRI scores.

Wildfire

98.3 / 100

Hurricane

68.3 / 100

Tornado

7.4 / 100

FEMA NRI data summary

Selected hazard scores for Hawaii County

Among the five hazard categories displayed by RiskByCounty, earthquake has the highest NRI score for this county.

Earthquake
99.1
Flood
98.9
Wildfire
98.3
Hurricane
68.3
Tornado
7.4

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
98.9
Coastal Flooding
50.8
Inland Flooding
98.9

These five categories are a selected subset of FEMA's 18 natural hazards. FEMA's composite score and official rating are separate fields in the National Risk Index dataset.

FEMA National Risk Index documentation

Official Ready.gov resource

Continue to Ready.gov for federal emergency-planning information maintained outside RiskByCounty.

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Frequently Asked Questions

How many Hawaii county records are included?
RiskByCounty includes 5 Hawaii county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in Hawaii?
FEMA NRI v1.20 (December 2025) county rating counts for Hawaii: Very Low: 1; Relatively Low: 0; Relatively Moderate: 2; Relatively High: 2; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for Hawaii?
FEMA NRI v1.20 (December 2025) availability among 5 county records: Flood: 5 of 5; Wildfire: 5 of 5; Tornado: 5 of 5; Earthquake: 5 of 5; Hurricane: 5 of 5. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Hawaii County, HI?
Hawaii County has an official FEMA NRI v1.20 composite rating of Relatively High and an NRI score (0–100 relative scale) of 98.5. RiskByCounty ranks it 2nd of 5 Hawaii county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Hawaii County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Hawaii County, Earthquake: 99.1; Flood: 98.9; Wildfire: 98.3; Hurricane: 68.3; Tornado: 7.4.
How is flood displayed for Hawaii County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Hawaii County, Coastal Flooding is 50.8, Inland Flooding is 98.9, and the displayed flood score is 98.9.

Counties with Similar Risk

Honolulu County

Hawaii

+0.3

Relatively High

NRI score 98.8

Maui County

Hawaii

-5.4

Relatively Moderate

NRI score 93.1

Kauai County

Hawaii

-14.1

Relatively Moderate

NRI score 84.4

Published by RiskByCounty

County summaries are deterministic transformations of frozen FEMA county fields. No external subject-matter reviewer is credited.

Published · Updated

Data Source

County data sourced from FEMA National Risk Index v1.20, released December 2025. Values are labeled NRI score (0–100 relative scale). RiskByCounty displays five selected hazard categories out of FEMA's 18; flood is the higher of the Coastal Flooding and Inland Flooding source scores.

RiskByCounty presents county-level source fields and deterministic arithmetic summaries.

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