riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Gloucester County Disaster Risk

Gloucester County, Virginia

FEMA Risk Rating

Very Low

NRI score (0–100 relative scale)

22.6

FEMA composite county value

State Rank

#72

of 133, sorted high to low by RiskByCounty

Flood NRI score

66.6

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.

Hurricane

75.8 / 100

Flood

66.6 / 100

Higher of FEMA Coastal Flooding (66.6) and Inland Flooding (25.9) NRI scores.

Wildfire

45.2 / 100

Earthquake

42.5 / 100

Tornado

29.9 / 100

FEMA NRI data summary

Selected hazard scores for Gloucester County

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

Hurricane
75.8
Flood
66.6
Wildfire
45.2
Earthquake
42.5
Tornado
29.9

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
66.6
Coastal Flooding
66.6
Inland Flooding
25.9

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

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Frequently Asked Questions

How many Virginia county records are included?
RiskByCounty includes 133 Virginia county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in Virginia?
FEMA NRI v1.20 (December 2025) county rating counts for Virginia: Very Low: 85; Relatively Low: 42; Relatively Moderate: 5; Relatively High: 1; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for Virginia?
FEMA NRI v1.20 (December 2025) availability among 133 county records: Flood: 133 of 133; Wildfire: 133 of 133; Tornado: 133 of 133; Earthquake: 133 of 133; Hurricane: 133 of 133. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Gloucester County, VA?
Gloucester County has an official FEMA NRI v1.20 composite rating of Very Low and an NRI score (0–100 relative scale) of 22.6. RiskByCounty ranks it 72nd of 133 Virginia county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Gloucester County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Gloucester County, Hurricane: 75.8; Flood: 66.6; Wildfire: 45.2; Earthquake: 42.5; Tornado: 29.9.
How is flood displayed for Gloucester County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Gloucester County, Coastal Flooding is 66.6, Inland Flooding is 25.9, and the displayed flood score is 66.6.

Counties with Similar Risk

Middlesex County

Virginia

+1.2

Very Low

NRI score 23.8

Powhatan County

Virginia

-1.5

Very Low

NRI score 21.1

Amherst County

Virginia

-1.6

Very Low

NRI score 21.0

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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